CVE-2026-96157

Summary

A heap-based buffer overflow (CWE-122) in Microsoft Windows Media Foundation enables remote code execution via network-triggered malformed media content. The flaw is critical due to its CVSS 9.8 score, requiring no user interaction or privileges.

Exploitability

Exploitation requires sending specially crafted media content over the network to a vulnerable system; no authentication or user interaction is needed, making it highly exploitable by remote attackers.

Blast radius

Successful exploitation could allow full system compromise—including confidentiality, integrity, and availability impacts—on any unpatched Windows systems with Media Foundation enabled and accessible over the network.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Apply Microsoft security update MS26-XXXX (to be determined from official advisory); until then, disable Windows Media Foundation functionality or restrict network exposure of affected services per Microsoft guidance. No fixed version is published in the description.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.