Vulnerability Details CVE-2026-111677
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 8.7%
CVSS Severity
CVSS v3 Score 5.5
References
- https://github.com/rsdoiel/antiword/blob/fe4b579067122a2d9d62647efb1ee7cfe3ca92bb/prop8.c#L799-L825
- https://hackmd.io/@haindpwn/antiword-word8-plcflst-count-and-fkp-run-oob-read
- https://www.vulncheck.com/advisories/antiword-through-0.37-heap-out-of-bounds-read-via-vget8lstinfo-in-prop8-c
- https://hackmd.io/@haindpwn/antiword-word8-plcflst-count-and-fkp-run-oob-read
Products affected by CVE-2026-111677
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cpe:2.3:a:antiword_project:antiword:0.37