CVE-2026-2644: niklasso minisat DIMACS File SolverTypes.h value out-of-bounds

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-02-18 · updated 2026-06-17
Weakness: CWE-119

Description

A weakness has been identified in niklasso minisat up to 2.2.0. This issue affects the function Solver::value in the library core/SolverTypes.h of the component DIMACS File Parser. This manipulation of the argument variable index with the input 2147483648 causes out-of-bounds read. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

niklasso minisat: through 2.2.0

References

https://github.com/niklasso/minisat/
https://github.com/niklasso/minisat/issues/55
https://github.com/niklasso/minisat/issues/55#issue-3832527387
https://vuldb.com/?ctiid.346406
https://vuldb.com/?id.346406
https://vuldb.com/?submit.752775

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