{"id":"CVE-2026-110715","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-110715","generatedAt":"2026-10-28T00:59:51.825Z","title":"MuJS 1.3.6 before 1.3.9 contains a heap out-of-bounds read and write vulnerability in Array.prototype.sort that allows attackers to corrupt memory by inflating a simple array's length.","description":"MuJS 1.3.6 before 1.3.9 contains a heap out-of-bounds read and write vulnerability in Array.prototype.sort that allows attackers to corrupt memory by inflating a simple array's length. Attackers can supply JavaScript that enlarges a dense array's length and calls sort, causing Ap_sort_cmp and Ap_sort_swap to access slots past the buffer and crash the process.","published":"2026-10-14T16:17:44.000Z","lastModified":"2026-10-15T20:17:09.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/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-787"],"affected":[],"epss":{"score":0.0017,"percentile":0.0632,"date":"2026-10-26","history":[{"date":"2026-10-15","score":0.00172,"percentile":0.0614}]},"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 (0.17%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-14T16:17:44.000Z","detail":{"score":"6.9","severity":"MEDIUM","publishedAt":"2026-10-14T16:17:43.610Z"},"summary":"New CVE, medium severity (CVSS 6.9)."}],"references":[{"url":"https://codeberg.org/ccxvii/mujs","source":"disclosure@vulncheck.com"},{"url":"https://codeberg.org/ccxvii/mujs/commit/32064e10caa45e68fc87331ca53d042049cc9396","source":"disclosure@vulncheck.com"},{"url":"https://codeberg.org/ccxvii/mujs/src/commit/307f18c4216420f2f56e22d8e7040baa39a6304a/jsarray.c#L245","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/mujs-array-length-flat-oob","source":"disclosure@vulncheck.com"},{"url":"https://mujs.com/downloads/","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/mujs-1.3.6-before-1.3.9-heap-out-of-bounds-read-write-via-array-prototype-sort","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-110715","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."}