CVE-2026-111677

EUVD-2026-102968
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 8.18%
Affected Products (NVD)
VendorProductVersion
antiword_projectantiword
𝑥
≤ 0.37
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
antiword
bookworm
undetermined
forky
undetermined
sid
undetermined
trixie
undetermined
Common Weakness Enumeration
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