SB2026062492 - openEuler 24.03 LTS SP3 update for thunderbird
Published: June 24, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 49 vulnerabilities.
1) Improper access control (CVE-ID: CVE-2026-12289)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to escalate privileges.
The vulnerability exists due to improper access control in the Graphics: WebRender component when rendering web content. A remote attacker can trigger the vulnerable component to escalate privileges.
2) Buffer overflow (CVE-ID: CVE-2026-12290)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to memory corruption in Firefox ESR when processing crafted content. A remote attacker can trigger the memory safety bug to execute arbitrary code.
3) Use-after-free (CVE-ID: CVE-2026-12291)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to use-after-free in the Networking: HTTP component when handling HTTP content. A remote attacker can send crafted content to execute arbitrary code.
4) Out-of-bounds write (CVE-ID: CVE-2026-12292)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to out-of-bounds write in the Web Audio component when processing audio content. A remote attacker can trigger the vulnerable behavior to execute arbitrary code.
5) Improper access control (CVE-ID: CVE-2026-12294)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to escape the sandbox.
The vulnerability exists due to improper access control in the DOM: Workers component when processing worker content. A remote attacker can trigger the vulnerable component to escape the sandbox.
6) Improper access control (CVE-ID: CVE-2026-12295)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to escape the sandbox.
The vulnerability exists due to improper access control in the DOM: Navigation component when processing navigation operations. A remote attacker can trigger the vulnerable component to escape the sandbox.
7) Improper access control (CVE-ID: CVE-2026-12296)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to escape the sandbox.
The vulnerability exists due to improper access control in the Security: Process Sandboxing component when enforcing sandbox restrictions. A remote attacker can trigger the vulnerable behavior to escape the sandbox.
8) Buffer overflow (CVE-ID: CVE-2026-12297)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to escape the sandbox.
The vulnerability exists due to incorrect boundary conditions in the Networking component when processing network data. A remote attacker can trigger the vulnerable component to escape the sandbox.
9) Buffer overflow (CVE-ID: CVE-2026-12298)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to memory corruption in an unspecified component when parsing input. A remote attacker can trigger the vulnerable behavior to execute arbitrary code.
10) Incorrect calculation (CVE-ID: CVE-2026-12299)
CWE-ID: CWE-682 - Incorrect Calculation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to JIT miscompilation in the DOM: Core & HTML component when executing script. A remote attacker can supply crafted script to execute arbitrary code.
11) Protection Mechanism Failure (CVE-ID: CVE-2026-12302)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass a security mitigation.
The vulnerability exists due to improper access control in the DOM: Security component when enforcing security restrictions. A remote attacker can trigger the vulnerable component to bypass a security mitigation.
12) Improper access control (CVE-ID: CVE-2026-12304)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass the same-origin policy.
The vulnerability exists due to improper access control in the Networking: Cookies component when handling cookies. A remote attacker can trigger the vulnerable behavior to bypass the same-origin policy.
13) Buffer overflow (CVE-ID: CVE-2026-12305)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to memory corruption in an unspecified component when parsing input. A remote attacker can trigger the vulnerable behavior to cause a denial of service.
14) Buffer overflow (CVE-ID: CVE-2026-12306)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to memory corruption in an unspecified component when parsing input. A remote attacker can trigger the vulnerable behavior to cause a denial of service.
15) Buffer overflow (CVE-ID: CVE-2026-12307)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to memory corruption in an unspecified component when parsing input. A remote attacker can trigger the vulnerable behavior to cause a denial of service.
16) Buffer overflow (CVE-ID: CVE-2026-12308)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to memory corruption in an unspecified component when parsing input. A remote attacker can trigger the vulnerable behavior to cause a denial of service.
17) Buffer overflow (CVE-ID: CVE-2026-12309)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to memory corruption in an unspecified component when parsing input. A remote attacker can trigger the vulnerable behavior to cause a denial of service.
18) Buffer overflow (CVE-ID: CVE-2026-12310)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to memory corruption in an unspecified component when parsing input. A remote attacker can trigger the vulnerable behavior to cause a denial of service.
19) Improper access control (CVE-ID: CVE-2026-12311)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to disclose sensitive information and escape the sandbox.
The vulnerability exists due to improper access control in the Security: Process Sandboxing component when enforcing sandbox restrictions. A remote attacker can trigger the vulnerable behavior to disclose sensitive information and escape the sandbox.
20) Buffer overflow (CVE-ID: CVE-2026-12312)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to memory corruption in an unspecified component when parsing input. A remote attacker can trigger the vulnerable behavior to cause a denial of service.
21) Improper access control (CVE-ID: CVE-2026-12313)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to disclose sensitive information and escape the sandbox.
The vulnerability exists due to improper access control in the Security: Process Sandboxing component when enforcing sandbox restrictions. A remote attacker can trigger the vulnerable behavior to disclose sensitive information and escape the sandbox.
22) Buffer overflow (CVE-ID: CVE-2026-12314)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to memory corruption in an unspecified component when parsing input. A remote attacker can trigger the vulnerable behavior to cause a denial of service.
23) Protection Mechanism Failure (CVE-ID: CVE-2026-12315)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass a security mitigation.
The vulnerability exists due to improper access control in the DOM: Security component when enforcing security restrictions. A remote attacker can trigger the vulnerable behavior to bypass a security mitigation.
24) Out-of-bounds read (CVE-ID: CVE-2026-12324)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds read in the Graphics: CanvasWebGL component when rendering WebGL content. A remote attacker can trigger the vulnerable behavior to cause a denial of service.
25) Input validation error (CVE-ID: CVE-2026-12325)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in the Graphics: ImageLib component when parsing image content. A remote attacker can supply crafted image content to cause a denial of service.
26) Buffer overflow (CVE-ID: CVE-2026-12327)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to memory corruption in multiple unspecified components when parsing input. A remote attacker can trigger the vulnerable behavior to execute arbitrary code.
Some of the bugs showed evidence of memory corruption.
27) Buffer overflow (CVE-ID: CVE-2026-12328)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to memory corruption in Firefox ESR when processing crafted content. A remote attacker can trigger the memory safety bugs to execute arbitrary code.
Some of the bugs showed evidence of memory corruption.
28) Buffer overflow (CVE-ID: CVE-2026-12329)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to memory corruption in an unspecified component when parsing input. A remote attacker can trigger the vulnerable behavior to execute arbitrary code.
29) Buffer overflow (CVE-ID: CVE-2026-12330)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to incorrect boundary conditions in the Internationalization component when parsing input. A remote attacker can supply crafted input to cause a denial of service.
30) Input validation error (CVE-ID: CVE-2026-8388)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to improper input validation in the JavaScript Engine: JIT component when processing crafted JavaScript. A remote attacker can supply specially crafted script content to execute arbitrary code.
31) Input validation error (CVE-ID: CVE-2026-8391)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to an unspecified issue in the JavaScript Engine component. A remote attacker can trick the victim into visiting a specially crafted website and execute arbitrary code on the system.
32) Protection mechanism failure (CVE-ID: CVE-2026-8401)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures in the Profile Backup component. An attacker can trick the victim into visiting a specially crafted website and bypass sandbox restrictions, leading to remote code execution.
33) Out-of-bounds read (CVE-ID: CVE-2026-8946)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to incorrect boundary conditions in the Audio/Video: Web Codecs component when processing crafted web content. A remote attacker can cause the browser to process specially crafted content to execute arbitrary code.
User interaction is required to visit a specially crafted website or URL.
34) Use-after-free (CVE-ID: CVE-2026-8947)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to use-after-free in the DOM: Bindings (WebIDL) component when processing crafted web content. A remote attacker can cause the browser to process specially crafted content to execute arbitrary code.
User interaction is required to visit a specially crafted website or URL.
35) Integer overflow (CVE-ID: CVE-2026-8949)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer overflow in the Widget: Win32 component when handling local interaction with the application. A local user can trigger the integer overflow to execute arbitrary code.
The issue affects the Win32-specific component.
36) Improper access control (CVE-ID: CVE-2026-8950)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to bypass the same-origin policy.
The vulnerability exists due to improper access control in the Networking: HTTP component when handling crafted web content. A remote attacker can cause the browser to process crafted content to bypass the same-origin policy.
User interaction is required to visit a specially crafted website or URL.
37) Use-after-free (CVE-ID: CVE-2026-8953)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to escape the sandbox.
The vulnerability exists due to use-after-free in the Disability Access APIs component when processing crafted web content. A remote attacker can trigger the flaw to escape the sandbox.
User interaction is required to visit a specially crafted website or URL.
38) Integer overflow (CVE-ID: CVE-2026-8954)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to incorrect boundary conditions and integer overflow in the Audio/Video component when processing crafted media content. A remote attacker can supply crafted media content to cause a denial of service.
User interaction is required to visit a specially crafted website or URL.
39) Improper privilege management (CVE-ID: CVE-2026-8955)
CWE-ID: CWE-269 - Improper Privilege Management
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to escalate privileges.
The vulnerability exists due to improper access control in the DOM: Workers component when processing crafted web content. A remote attacker can trigger the flaw to escalate privileges.
User interaction is required to visit a specially crafted website or URL.
40) Integer overflow (CVE-ID: CVE-2026-8956)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to integer overflow in the Networking: JAR component when processing crafted web content. A remote attacker can supply crafted content to cause a denial of service.
User interaction is required to visit a specially crafted website or URL.
41) Improper privilege management (CVE-ID: CVE-2026-8957)
CWE-ID: CWE-269 - Improper Privilege Management
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges.
The vulnerability exists due to improper access control in the Enterprise Policies component when modifying enterprise policy handling. A local user can manipulate enterprise policy behavior to escalate privileges.
42) Improper access control (CVE-ID: CVE-2026-8958)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to disclose sensitive information and escape the sandbox.
The vulnerability exists due to improper access control in the Security: Process Sandboxing component when processing crafted web content. A remote attacker can trigger the flaw to disclose sensitive information and escape the sandbox.
User interaction is required to visit a specially crafted website or URL.
43) Out-of-bounds read (CVE-ID: CVE-2026-8959)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escape the sandbox.
The vulnerability exists due to incorrect boundary conditions in the Widget: Win32 component when handling local interaction with the application. A local user can trigger the flaw to escape the sandbox.
The issue affects the Win32-specific component.
44) Input validation error (CVE-ID: CVE-2026-8961)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to spoof content.
The vulnerability exists due to improper input validation in the Form Autofill component when rendering crafted web content. A remote attacker can present crafted content to spoof content.
User interaction is required to visit a specially crafted website or URL.
45) Protection Mechanism Failure (CVE-ID: CVE-2026-8962)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass a security mitigation.
The vulnerability exists due to improper access control in the DOM: Security component when processing crafted web content. A remote attacker can trigger the flaw to bypass a security mitigation.
User interaction is required to visit a specially crafted website or URL.
46) NULL pointer dereference (CVE-ID: CVE-2026-8968)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an invalid pointer dereference in the Audio/Video: Web Codecs component when processing crafted web content. A remote attacker can trigger the invalid pointer condition to cause a denial of service.
User interaction is required to visit a specially crafted website or URL.
47) Improper privilege management (CVE-ID: CVE-2026-8970)
CWE-ID: CWE-269 - Improper Privilege Management
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to escalate privileges.
The vulnerability exists due to improper access control in the Security component when processing crafted web content. A remote attacker can trigger the flaw to escalate privileges.
User interaction is required to visit a specially crafted website or URL.
48) Buffer overflow (CVE-ID: CVE-2026-8974)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to memory corruption in multiple unspecified components when processing crafted web content. A remote attacker can trigger memory corruption to execute arbitrary code.
Some of the bugs showed evidence of memory corruption.
49) Buffer overflow (CVE-ID: CVE-2026-8975)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to memory corruption in multiple components when processing crafted web content. A remote attacker can cause the browser to process specially crafted content to execute arbitrary code.
User interaction is required to visit a specially crafted website or URL.
Remediation
Install update from vendor's website.