CVE-2026-111677
mediumAntiword through 0.37 contains a heap out-of-bounds read vulnerability in vGet8LstInfo in prop8.c caused by an inverted bounds check on the PlcfLst record coun…
Vendor / product: Antiword Project — antiword
Antiword through 0.37 contains a heap out-of-bounds read vulnerability in vGet8LstInfo in prop8.c caused by an inverted bounds check on the PlcfLst record count. Attackers can supply a crafted Word 8 .doc file claiming up to 0xffff LSTF records in a tiny buffer, causing reads past the heap allocation that crash the process.
CVSS
5.5
5.5 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-16 18:17
Modified: 2026-10-20 19:08
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 07:03 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
antiword_project / antiword ≤0.37
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://hackmd.io/@haindpwn/antiword-word8-plcflst-count-and-fkp-run-oob-read
Patch / mitigation: https://hackmd.io/@haindpwn/antiword-word8-plcflst-count-and-fkp-run-oob-read
References
- https://github.com/rsdoiel/antiword/blob/fe4b579067122a2d9d62647efb1ee7cfe3ca92bb/prop8.c#... disclosure@vulncheck.com
- https://hackmd.io/@haindpwn/antiword-word8-plcflst-count-and-fkp-run-oob-read disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/antiword-through-0.37-heap-out-of-bounds-read-via-vge... disclosure@vulncheck.com
- https://hackmd.io/@haindpwn/antiword-word8-plcflst-count-and-fkp-run-oob-read 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:03 UTC · record ↗