{"id":"CVE-2018-12292","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-12292","generatedAt":"2026-10-28T19:19:36.011Z","title":"A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before 27.9.3.","description":"A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before 27.9.3.","published":"2018-06-13T14:29:00.000Z","lastModified":"2026-06-17T01:37:30.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["palemoon/pale moon"],"epss":{"score":0.08751,"percentile":0.95133,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.06686,"percentile":0.93689},{"date":"2026-09-22","score":0.09068,"percentile":0.95057}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2018-06-18","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":44900,"kind":"exploit","title":"Pale Moon Browser < 27.9.3 - Use After Free (PoC)","url":"https://www.exploit-db.com/exploits/44900","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/local/44900.txt","file":"exploits/windows/local/44900.txt","published":"2018-06-18","added":"2018-06-18","updated":"2018-06-19","author":"Berk Cem Göksel","type":"local","platform":"windows","port":null,"verified":false,"codes":["CVE-2018-12292"],"tags":"Use After Free (UAF)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB and the impact is critical, while EPSS rates exploitation at 8.8%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"https://www.exploit-db.com/exploits/44900/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.palemoon.org/releasenotes.shtml","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/44900/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.palemoon.org/releasenotes.shtml","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-12292","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."}