CVE-2026-112056

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.

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/stylesheet.c#L447
https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read
https://www.vulncheck.com/advisories/wvware-wv-through-1.2.9-heap-out-of-bounds-read-via-wvgetstsh

Configurations

No configuration.

History

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-2026-112056

Mitre link : CVE-2026-112056

CVE.ORG link : CVE-2026-112056

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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