CVE-2026-112055 wvWare wv through 1.2.9 Stack Out-of-Bounds Read via wvGetPAPX_FKP and wvGetCHPX_FKP
Attackers can cause crashes or leak memory by providing crafted .doc files to applications using the wvWare library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-112055?
CVE-2026-112055 is a medium-severity memory corruption vulnerability in wvWare wv, published on 18 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-125
Which versions are affected by CVE-2026-112055?
How do I fix CVE-2026-112055?
No fix has been published for CVE-2026-112055 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-112055 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112055 exists.
Sources
Also known as DEBIAN-CVE-2026-112055, GHSA-jf7v-2r7w-h9p9, UBUNTU-CVE-2026-112055.