{"id":"CVE-2026-105959","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-105959","generatedAt":"2026-10-28T02:24:29.173Z","title":"The GLZ encoder dictionary restore path truncates a size_t allocation size to int when calling the malloc callback, allowing a malicious authenticated SPICE client during VM live migration to trigger a massive heap buffer overflow by sending a crafted…","description":"A flaw was found in spice-server. The GLZ encoder dictionary restore path truncates a size_t allocation size to int when calling the malloc callback, allowing a malicious authenticated SPICE client during VM live migration to trigger a massive heap buffer overflow by sending a crafted max_encoders value in migration data.","published":"2026-10-16T12:16:32.000Z","lastModified":"2026-10-16T19:23:19.000Z","status":"Awaiting Analysis","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-190"],"affected":[],"epss":{"score":0.0048,"percentile":0.41148,"date":"2026-10-26","history":[{"date":"2026-10-17","score":0.00404,"percentile":0.33149}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-16T12:16:32.000Z","detail":{"score":"7.5","severity":"HIGH","publishedAt":"2026-10-16T12:16:31.733Z"},"summary":"New CVE, high severity (CVSS 7.5)."}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-105959","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2554008","source":"secalert@redhat.com"},{"url":"https://gitlab.freedesktop.org/spice/spice/-/merge_requests/253","source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-105959","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."}