CVE-2026-111677
Antiword through 0.37 Heap Out-of-Bounds Read via vGet8LstInfo in prop8.c
Adri van Os antiword
CVSS
6.8MediumExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 16 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.19%Chance of exploitation activity in the next 30 days, higher than 8% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
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.
Text from CVE List
Affected versions 1
- antiwordaffected: all versions through 0.37CVE List
References 3
- vulncheck.com/advisories/antiword-through-0.37-heap-out-of-bounds-read-via-vget8lstinfo-in-prop8-cAdvisoryvia CVE List
- hackmd.io/@haindpwn/antiword-word8-plcflst-count-and-fkp-run-oob-readExploitvia CVE List
- github.com/rsdoiel/antiword/blob/fe4b579067122a2d9d62647efb1ee7cfe3ca92bb/prop8.c#L799-L825Referencevia CVE List