Web Media Extensions Remote Code Execution Vulnerability

Source data

Overview

Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.

Impact & technical details

Remote Code Execution

CVSS base score

8.8 / 10

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Highest base score supplied by MSRC for this record; the vector belongs to that score. Ratings can vary by product. Microsoft Important is displayed as High; Moderate is displayed as Medium.

Affected products

• Web Media Extensions on Windows 10 Version 21H2 for 32-bit Systems
• Web Media Extensions on Windows 10 Version 21H2 for ARM64-based Systems
• Web Media Extensions on Windows 10 Version 21H2 for x64-based Systems
• Web Media Extensions on Windows 10 Version 22H2 for 32-bit Systems
• Web Media Extensions on Windows 10 Version 22H2 for ARM64-based Systems
• Web Media Extensions on Windows 10 Version 22H2 for x64-based Systems
• Web Media Extensions on Windows 11 Version 23H2 for ARM64-based Systems
• Web Media Extensions on Windows 11 Version 23H2 for x64-based Systems

Source guidance

Remediation

• Release Notes

At least one Microsoft vendor-fix reference is available. Check each affected product for its applicable update, prerequisites, and supported version.

Authoritative sources & updates

Findings and update information come from the linked publishers. GTP compiles the public record and provides the recommendation above. CVSS ratings shown here come from Microsoft. NVD references provide additional public context.

• Microsoft Security Response Center (opens in a new tab)
• Microsoft security update · Release Notes (opens in a new tab)