{"id":"CVE-2026-110602","published":"2026-10-14T15:17:11.677","lastModified":"2026-10-16T19:18:44.867","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.","cvssScore":6.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H","cwes":["CWE-824"],"vendors":[],"products":[],"references":[{"url":"https://github.com/kyz/libmspack/blob/v0.11alpha/libmspack/mspack/kwajd.c#L111-L181","tags":[]},{"url":"https://github.com/kyz/libmspack/commit/4d868504114346aa767d435fbb89a8b76603493f","tags":[]},{"url":"https://hackmd.io/@haind-pwn/libmspack-kwaj-uninitialized-free","tags":[]},{"url":"https://www.vulncheck.com/advisories/libmspack-through-0-11alpha-uninitialized-pointer-free-via-kwajd-open-error-path","tags":[]},{"url":"https://hackmd.io/@haind-pwn/libmspack-kwaj-uninitialized-free","tags":[]}],"exploitRefs":[{"url":"https://github.com/kyz/libmspack/blob/v0.11alpha/libmspack/mspack/kwajd.c#L111-L181","tags":[]},{"url":"https://github.com/kyz/libmspack/commit/4d868504114346aa767d435fbb89a8b76603493f","tags":[]}],"hasPoc":true,"ai":null}