{"id":"CVE-2026-110602","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-110602","generatedAt":"2026-10-28T03:59:43.545Z","title":"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.","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.","published":"2026-10-14T15:17:12.000Z","lastModified":"2026-10-16T19:18:45.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":5.8,"severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-824"],"affected":[],"epss":{"score":0.00235,"percentile":0.14442,"date":"2026-10-27","history":[{"date":"2026-10-15","score":0.00235,"percentile":0.13467}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-14T15:17:12.000Z","detail":{"score":"5.8","severity":"MEDIUM","publishedAt":"2026-10-14T15:17:11.677Z"},"summary":"New CVE, medium severity (CVSS 5.8)."}],"references":[{"url":"https://github.com/kyz/libmspack/blob/v0.11alpha/libmspack/mspack/kwajd.c#L111-L181","source":"disclosure@vulncheck.com"},{"url":"https://github.com/kyz/libmspack/commit/4d868504114346aa767d435fbb89a8b76603493f","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/libmspack-kwaj-uninitialized-free","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/libmspack-through-0-11alpha-uninitialized-pointer-free-via-kwajd-open-error-path","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/libmspack-kwaj-uninitialized-free","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-110602","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}