SB2026012326 - SUSE update for MozillaFirefox
Published: January 23, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 13 secuirty vulnerabilities.
1) Spoofing attack (CVE-ID: CVE-2025-14327)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in the Downloads Panel component. A remote attacker can perform a spoofing attack.
2) Protection mechanism failure (CVE-ID: CVE-2026-0877)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures. An attacker can bypass implemented DOM security restrictions and execute arbitrary JavaScript code.
3) Buffer overflow (CVE-ID: CVE-2026-0878)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the in the Graphics: CanvasWebGL component. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Buffer overflow (CVE-ID: CVE-2026-0879)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the Graphics component. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) Integer overflow (CVE-ID: CVE-2026-0880)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in the Graphics component. A remote attacker can trick the victim into visiting a specially crafted website, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
6) Use-after-free (CVE-ID: CVE-2026-0882)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in the IPC component. A remote attacker can trick the victim into visiting a specially crafted web page and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
7) Information disclosure (CVE-ID: CVE-2026-0883)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the Networking component. A remote attacker can gain unauthorized access to sensitive information on the system.
8) Use-after-free (CVE-ID: CVE-2026-0884)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a use-after-free error in the JavaScript Engine component. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser.
9) Use-after-free (CVE-ID: CVE-2026-0885)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a use-after-free error in the JavaScript: GC component. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser.
10) Buffer overflow (CVE-ID: CVE-2026-0886)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the Graphics component. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
11) Improper Restriction of Rendered UI Layers or Frames (CVE-ID: CVE-2026-0887)
The vulnerability allows a remote attacker to perform clickjacking attacks.
The vulnerability exists due to an error in the PDF Viewer. A remote attacker can trick the victim into opening a specially crafted URL and gain access to sensitive information or perform clickjacking attack.
12) Spoofing attack (CVE-ID: CVE-2026-0890)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in the DOM: Copy & Paste and Drag & Drop component. A remote attacker can spoof page content.
13) Buffer overflow (CVE-ID: CVE-2026-0891)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.