CVE-2026-91752 GNU libextractor - Buffer Overflow

GNU libextractor < 1.15 contains a buffer overflow caused by sizing a variable-length stack array from attacker-controlled OLE2 stream data in process_star_office, letting attackers cause application crashes, exploit requires crafted malicious StarOffice documents.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.74% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-789

Vendor fix

Update to version 1.15 or later.

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

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