CVE-2026-112056CWE-125

CVE-2026-112056

Medium · published October 18, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
1.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
6.8 · 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
EPSS
0.00118 · 1.6th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-10-18T17:16Z
References (3)
https://github.com/AbiWord/wv/blob/wv-1-2-9/stylesheet.c#L447 · [email protected]https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read · [email protected]https://www.vulncheck.com/advisories/wvware-wv-through-1.2.9-heap-out-of-bounds-read-via-wvgetstsh · [email protected]
EPSS history
Timeline
  • 20 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 18 OCT 12:19Z
    wvWare wv through 1.2.9 Heap Out-of-Bounds Read via wvGetSTSH
    cvelistv5
  • 18 OCT 12:19Z
    wvWare wv through 1.2.9 Heap Out-of-Bounds Read via wvGetSTSH
    cvelistv5