CVE-2026-111678
CVE-2026-111678
Antiword through 0.37 contains a stack out-of-bounds read vulnerability in vGet8PapInfo and vGet8ChrInfo in prop8.c because FKP run counts and grpprl offsets are not bounded. Attackers can supply a crafted .doc file with malicious FKP pages to read past the 512-byte stack buffer, crashing antiword or corrupting style parsing.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- hackmd.io/@haindpwn/antiword-word8-plcflst-count-and-fkp-run-oob-read (third-party-advisory)
- github.com/rsdoiel/antiword/blob/fe4b579067122a2d9d62647efb1ee7cfe3ca92bb/prop8… (technical-description)
- github.com/rsdoiel/antiword/blob/fe4b579067122a2d9d62647efb1ee7cfe3ca92bb/prop8… (technical-description)
- www.vulncheck.com/advisories/antiword-through-0.37-stack-out-of-bounds-read-via… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111678?
- CVE-2026-111678 is a low-severity vulnerability, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2026-10-16.
- How severe is CVE-2026-111678?
- Low severity. CVSS v3 base score is 3.3 out of 10.