Is CVE-2026-110602 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-110602?

CVE-2026-110602 has a CVSS v3 severity of MEDIUM (6.3).

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CVE-2026-110602

Description

libmspack through 0.11alpha contains an uninitialized pointer free vulnerability in kwajd_open() in mspack/kwajd.c that frees unzeroed filename and extra pointers on header read errors. Attackers can supply a truncated, empty, or wrong-signature KWAJ file to crash the process or obtain an arbitrary-free memory corruption primitive.