CVE-2026-70343: high-severity vulnerability in Microsoft MPEG-2 Video Extension
Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.8%
exploitation probability
0.8%top 44% of all CVEs
observed exploitation
nono source reports it
Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.
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
Affected products
Microsoft · MPEG-2 Video ExtensionRelated CVEs — Microsoft MPEG-2 Video Extension
In the same product, most dangerous first.