{"id":"CVE-2017-5375","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-5375","generatedAt":"2026-10-28T23:09:19.770Z","title":"JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks.","description":"JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.","published":"2018-06-11T21:29:03.000Z","lastModified":"2026-06-17T01:20:21.000Z","status":"Modified","sourceIdentifier":"security@mozilla.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-119"],"affected":["redhat/enterprise linux desktop","redhat/enterprise linux server","redhat/enterprise linux workstation","mozilla/firefox","mozilla/thunderbird","debian/debian linux"],"epss":{"score":0.3407,"percentile":0.98391,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.19803,"percentile":0.97342},{"date":"2026-09-22","score":0.33771,"percentile":0.98318}]},"kev":{"listed":false},"exploits":{"count":3,"verified":true,"firstPublished":"2017-07-14","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":44294,"kind":"exploit","title":"Firefox 44.0.2 - ASM.JS JIT-Spray Remote Code Execution","url":"https://www.exploit-db.com/exploits/44294","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/44294.html","file":"exploits/windows/remote/44294.html","published":"2018-03-16","added":"2018-03-16","updated":"2018-03-20","author":"Rh0","type":"remote","platform":"windows","port":null,"verified":true,"codes":["CVE-2017-5375","CVE-2016-1960"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comFirefoxSetup44.0.2.exe","screenshotUrl":"http://www.exploit-db.com/screenshots/idlt44500/screen-shot-2018-03-16-at-191222.png","referenceUrl":null},{"edbId":44293,"kind":"exploit","title":"Firefox 46.0.1 - ASM.JS JIT-Spray Remote Code Execution","url":"https://www.exploit-db.com/exploits/44293","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/44293.html","file":"exploits/windows/remote/44293.html","published":"2018-03-16","added":"2018-03-16","updated":"2018-03-20","author":"Rh0","type":"remote","platform":"windows","port":null,"verified":true,"codes":["CVE-2017-5375","CVE-2016-2819"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comFirefoxSetup46.0.1.exe","screenshotUrl":"http://www.exploit-db.com/screenshots/idlt44500/screen-shot-2018-03-16-at-184530.png","referenceUrl":null},{"edbId":42327,"kind":"exploit","title":"Firefox 50.0.1 - ASM.JS JIT-Spray Remote Code Execution","url":"https://www.exploit-db.com/exploits/42327","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/42327.html","file":"exploits/windows/remote/42327.html","published":"2017-07-14","added":"2017-07-14","updated":"2017-07-14","author":"Rh0","type":"remote","platform":"windows","port":null,"verified":false,"codes":["CVE-2017-5375","CVE-2016-9079"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://rh0dev.github.io/blog/2017/the-return-of-the-jit/"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 34.1%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.33771,"from":0.19803,"percentile":0.98318},"summary":"EPSS moved from 19.8% to 33.8% probability of exploitation in the next thirty days."}],"references":[{"url":"http://rhn.redhat.com/errata/RHSA-2017-0190.html","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0238.html","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"http://www.securityfocus.com/bid/95757","tags":["Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"http://www.securitytracker.com/id/1037693","tags":["Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1325200","tags":["Issue Tracking","Permissions Required"],"source":"security@mozilla.org"},{"url":"https://security.gentoo.org/glsa/201702-13","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://security.gentoo.org/glsa/201702-22","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://www.debian.org/security/2017/dsa-3771","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://www.debian.org/security/2017/dsa-3832","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://www.exploit-db.com/exploits/42327/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"https://www.exploit-db.com/exploits/44293/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"https://www.exploit-db.com/exploits/44294/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-01/","tags":["Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-02/","tags":["Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-03/","tags":["Vendor Advisory"],"source":"security@mozilla.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0190.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0238.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/95757","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1037693","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1325200","tags":["Issue Tracking","Permissions Required"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201702-13","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201702-22","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2017/dsa-3771","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2017/dsa-3832","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42327/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/44293/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/44294/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-01/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-02/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-03/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-5375","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."}