CVE-2026-111677

Antiword through 0.37 Heap Out-of-Bounds Read via vGet8LstInfo in prop8.c

Published Oct 16, 2026 CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Antiword Project
Antiword Project antiword
CPEs cpe:2.3:a:antiword_project:antiword:*:*:*:*:*:*:*:*
Vendors & Products Antiword Project
Antiword Project antiword
Type Values Removed Values Added
First Time appeared Adri Van Os
Adri Van Os antiword
Vendors & Products Adri Van Os
Adri Van Os antiword
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Antiword through 0.37 Heap Out-of-Bounds Read via vGet8LstInfo in prop8.c
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 18, 2026, 12:26 PM
Reserved
Oct 16, 2026, 2:31 PM
Status
Analyzed
Published
Oct 16, 2026, 6:17 PM
Modified
Oct 20, 2026, 7:08 PM