CVE-2026-28609 MatroskaExtractor - Remote Code Execution

MatroskaExtractor contains an out-of-bounds write caused by improper casting in MatroskaExtractor.cpp, letting remote attackers execute arbitrary code without additional privileges, exploit requires no user interaction.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Required
EPSS
0.37% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
8 September 2026
Updated
15 October 2026
Weakness
CWE-704

Vendor fix

Update to the latest version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs