CVE-2026-112055

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/AbiWord/wv/blob/wv-1-2-9/fkp.c#L122
https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read
https://www.vulncheck.com/advisories/wvware-wv-through-1.2.9-stack-out-of-bounds-read-via-wvgetpapx-fkp-and-wvgetchpx-fkp
https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read

Configurations

No configuration.

History

19 Oct 2026, 17:17

Type	Values Removed	Values Added
References	~~() https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read -~~	() https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read -

18 Oct 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-18 13:16

Updated : 2026-10-19 21:14

NVD link : CVE-2026-112055

Mitre link : CVE-2026-112055

CVE.ORG link : CVE-2026-112055

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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