CVE-2026-112056

medium

Description

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.

References

https://www.vulncheck.com/advisories/wvware-wv-through-1.2.9-heap-out-of-bounds-read-via-wvgetstsh

https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read

https://github.com/AbiWord/wv/blob/wv-1-2-9/stylesheet.c#L447

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103518

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-19

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity: Medium

CVSS v4

Base 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

Severity: Medium

EPSS

EPSS: 0.00118