CVE-2026-112055CWE-125

CVE-2026-112055

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 stack-based out-of-bounds read vulnerability in wvGetPAPX_FKP and wvGetCHPX_FKP caused by an unvalidated FKP run count. Attackers can supply a crafted .doc file with a large crun value to read kilobytes past the 512-byte stack buffer, crashing applications like 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 (4)
https://github.com/AbiWord/wv/blob/wv-1-2-9/fkp.c#L122 · [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-stack-out-of-bounds-read-via-wvgetpapx-fkp-and-wvgetchpx-fkp · [email protected]https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 20 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 18 OCT 12:19Z
    wvWare wv through 1.2.9 Stack Out-of-Bounds Read via wvGetPAPX_FKP and wvGetCHPX_FKP
    cvelistv5
  • 18 OCT 12:19Z
    wvWare wv through 1.2.9 Stack Out-of-Bounds Read via wvGetPAPX_FKP and wvGetCHPX_FKP
    cvelistv5