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.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
wvWare wv unaffected
Version Status Constraints
0 affected ≤ 1.2.9

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/AbiWord/wv/blob/wv-1-2-9/stylesheet.c#L447 cve-icon cve-icon
https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read cve-icon cve-icon
https://www.vulncheck.com/advisories/wvware-wv-through-1.2.9-heap-out-of-bounds-read-via-wvgetstsh cve-icon cve-icon
History

Sun, 18 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
Description 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.
Title wvWare wv through 1.2.9 Heap Out-of-Bounds Read via wvGetSTSH
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.8, 'vector': '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'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-18T12:19:47.212Z

Reserved: 2026-10-18T11:54:42.805Z

Link: CVE-2026-112056

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-18T13:16:37.890

Modified: 2026-10-18T13:16:37.890

Link: CVE-2026-112056

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-18T13:45:14Z

Weaknesses