Summary
Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Unlikely. Customer action: Required.
Details
According to the CVSS metric, the attack vector is network (AV:N) and user interaction is required (UI:R). What is the target context of the remote code execution?
This attack requires a user to open a specially crafted file from the attacker to initiate remote code execution.
Security updates
1.2.32.0 — https://apps.microsoft.com/detail/9n95q1zzpmh4?launch=true&mode=full&hl=en-US&gl=US&ocid=bingwebsearch
Vulnerabilities 1
-
High 8.8
Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.
Revision history
-
#1
Information published.
References
-
CVE-2026-70343 Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70343
-
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
-
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
-
Common Vulnerability Scoring System
https://www.first.org/cvss