SB2025110703 - Multiple vulnerabilities in Microsoft Edge

Description

This security bulletin contains information about 3 vulnerabilities.

1) Improperly implemented security check for standard (CVE-ID: CVE-2025-12726)

CWE-ID: CWE-358 - Improperly Implemented Security Check for Standard

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to incorrect implementation in Views in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and compromise the system.

2) Improperly implemented security check for standard (CVE-ID: CVE-2025-12727)

CWE-ID: CWE-358 - Improperly Implemented Security Check for Standard

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to incorrect implementation in V8 in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and compromise the system.

3) Out-of-bounds write (CVE-ID: CVE-2025-12725)

CWE-ID: CWE-787 - Out-of-bounds write

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 vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted HTML content in WebGPU. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger out-of-bounds write and execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-12726
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-12727
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-12725