Vulnerability DatabaseCVE-2026-112056
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CVE-2026-112056
Published:October 18, 2026
Updated:October 20, 2026
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.
Related Resources (6)
https://www.vulncheck.com/advisories/wvware-wv-through-1.2.9-heap-out-of-bounds-read-via-wvgetstsh
https://github.com/AbiWord/wv
https://nvd.nist.gov/vuln/detail/CVE-2026-112056
https://hackmd.io/@haindpwn/wv-fkp-crun-stsh-cstd-oob-read
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112056.json
https://github.com/AbiWord/wv/blob/wv-1-2-9/stylesheet.c#L447
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CVSS v4
Base Score:
6.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.5
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Read
CWE-125
EPSS
Base Score:
0.12