{"schema":"threatline.record/2","record":{"id":"CVE-2026-110602","aliases":[],"summary":"libmspack through 0.11alpha Uninitialized Pointer Free via kwajd_open Error Path","details":"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.","categories":["Unclassified"],"product":"libmspack","vendor":"kyz","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110602","source_modified_at":"2026-10-14T18:01:09.032Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"libmspack","vendor":"kyz","versions":[{"version":"0","lessThanOrEqual":"0.11alpha","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":5.8,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00235,"percentile":0.13712,"score_date":"2026-10-23"},"published_at":"2026-10-14T14:16:43.661Z","modified_at":"2026-10-14T18:01:09.032Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-110602","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T18:01:09.032Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-110602","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/kyz/libmspack/commit/4d868504114346aa767d435fbb89a8b76603493f","tags":["patch"]},{"source":"CVE List","url":"https://github.com/kyz/libmspack/blob/v0.11alpha/libmspack/mspack/kwajd.c#L111-L181","tags":["technical-description"]},{"source":"CVE List","url":"https://hackmd.io/@haind-pwn/libmspack-kwaj-uninitialized-free","tags":["exploit"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/libmspack-through-0-11alpha-uninitialized-pointer-free-via-kwajd-open-error-path","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-14T17:59:54.674497Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-14T18:01:09.032Z","content_hash":"e4063ad53fb11c9ad8795b0925292351e1455f7b878fc6592d9736cc4f3ef958"}}