SB2026071642 - Multiple vulnerabilities in Microsoft Windows Runtime
Published: July 16, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 17 vulnerabilities.
1) Race condition (CVE-ID: CVE-2026-50403)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 on the system.
The vulnerability exists due to a race condition in Windows Runtime. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
2) Race condition (CVE-ID: CVE-2026-50322)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 on the system.
The vulnerability exists due to a race condition in Windows Runtime. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
3) Race condition (CVE-ID: CVE-2026-50452)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to a race condition. A remote attacker can exploit the race and escalate privileges on the system.
4) Race condition (CVE-ID: CVE-2026-50348)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to a race condition in Windows Runtime. A remote attacker can exploit the race and escalate privileges on the system.
5) Use-after-free (CVE-ID: CVE-2026-50340)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Windows Runtime. A remote user can gain elevated privileges on the target system.
6) Use-after-free (CVE-ID: CVE-2026-50323)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Windows Runtime. A local user can gain elevated privileges on the target system.
7) Use-after-free (CVE-ID: CVE-2026-50410)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Windows Runtime. A local user can gain elevated privileges on the target system.
8) Use-after-free (CVE-ID: CVE-2026-50449)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Windows Runtime. A local user can gain elevated privileges on the target system.
9) Race condition (CVE-ID: CVE-2026-50460)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/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 on the system.
The vulnerability exists due to a race condition in Windows Runtime. A remote attacker can exploit the race and escalate privileges on the system.
10) Race condition (CVE-ID: CVE-2026-50345)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 on the system.
The vulnerability exists due to a race condition in Windows Runtime. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
11) Race condition (CVE-ID: CVE-2026-50385)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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 on the system.
The vulnerability exists due to a race condition in Windows Runtime. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
12) Use-after-free (CVE-ID: CVE-2026-50413)
CWE-ID: CWE-416 - Use After Free
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 compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Windows Runtime. A local user can gain elevated privileges on the target system.
13) Race condition (CVE-ID: CVE-2026-50503)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 on the system.
The vulnerability exists due to a race condition in Windows Runtime. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
14) Use-after-free (CVE-ID: CVE-2026-50457)
CWE-ID: CWE-416 - Use After Free
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 compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Windows Runtime. A local user can gain elevated privileges on the target system.
15) Race condition (CVE-ID: CVE-2026-54125)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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 on the system.
The vulnerability exists due to a race condition in Windows Runtime. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
16) Use-after-free (CVE-ID: CVE-2026-50486)
CWE-ID: CWE-416 - Use After Free
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 compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Windows Runtime. A local user can gain eelvated privileges on the target system.
17) Race condition (CVE-ID: CVE-2026-58527)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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 on the system.
The vulnerability exists due to a race condition in Windows Runtime. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50403
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50322
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50452
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50348
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50340
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50323
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50410
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50449
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50460
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50345
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50385
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50413
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50503
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50457
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54125
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50486
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58527