CVE-2026-91752highCWE-789

CVE-2026-91752: high-severity vulnerability in GNU libextractor

GNU libextractor before 1.15 Stack Overflow via OLE2

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41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 8.7epss 0.7%
GNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function that sizes a variable-length stack array from attacker-controlled OLE2 stream data. Attackers can craft malicious StarOffice documents that allocate up to 4 MB on the stack, causing stack overflow and crashing any application extracting metadata from the document.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
GNU · libextractor
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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