wv up to 1.2.9 Stylesheet stylesheet.c wvGetSTSH out-of-bounds

Summaryinfo

A vulnerability labeled as problematic has been found in wv up to 1.2.9. The affected element is the function wvGetSTSH of the file stylesheet.c of the component Stylesheet. The manipulation results in out-of-bounds. This vulnerability is identified as CVE-2026-112056. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability was found in wv up to 1.2.9. It has been classified as problematic. Affected is the function wvGetSTSH of the file stylesheet.c of the component Stylesheet. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. CVE summarizes:

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.

The advisory is available at hackmd.io. This vulnerability is traded as CVE-2026-112056 since 10/18/2026. The exploitability is told to be easy. Local access is required to approach this attack. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• wv

Version

• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3
• 1.2.4
• 1.2.5
• 1.2.6
• 1.2.7
• 1.2.8
• 1.2.9

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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