CVE-2026-112056

EUVD-2026-103518
wvWare wv through 1.2.9 contains a heap-based out-of-bounds read vulnerability in wvGetSTSH in stylesheet.c that allows attackers to crash applications by supplying crafted Word stylesheets. Attackers can provide a .doc file with ten or fewer styles or out-of-range style base indexes to read past heap arrays, crashing applications such as AbiWord.
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
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 1.62%
Debian logo
Debian Releases
Debian Product
Codename
wv
bookworm
undetermined
forky
undetermined
sid
undetermined
trixie
undetermined
Common Weakness Enumeration
References
https://github.com/AbiWord/wv/blob/wv-1-2-9/stylesheet.c#L447
https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read
https://www.vulncheck.com/advisories/wvware-wv-through-1.2.9-heap-out-of-bounds-read-via-wvgetstsh