{"id":"CVE-2016-3644","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-3644","generatedAt":"2026-11-05T05:27:55.362Z","title":"The AntiVirus Decomposer engine in Symantec Advanced Threat Protection (ATP); Symantec Data Center Security:Server (SDCS:S) 6.x through 6.6 MP1; Symantec Web Gateway; Symantec Endpoint Protection (SEP) before 12.1 RU6 MP5; Symantec Endpoint Protection…","description":"The AntiVirus Decomposer engine in Symantec Advanced Threat Protection (ATP); Symantec Data Center Security:Server (SDCS:S) 6.x through 6.6 MP1; Symantec Web Gateway; Symantec Endpoint Protection (SEP) before 12.1 RU6 MP5; Symantec Endpoint Protection (SEP) for Mac; Symantec Endpoint Protection (SEP) for Linux before 12.1 RU6 MP5; Symantec Protection Engine (SPE) before 7.0.5 HF01, 7.5.x before 7.5.3 HF03, 7.5.4 before HF01, and 7.8.0 before HF01; Symantec Protection for SharePoint Servers (SPSS) 6.0.3 through 6.0.5 before 6.0.5 HF 1.5 and 6.0.6 before HF 1.6; Symantec Mail Security for Microsoft Exchange (SMSMSE) before 7.0_3966002 HF1.1 and 7.5.x before 7.5_3966008 VHF1.2; Symantec Mail Security for Domino (SMSDOM) before 8.0.9 HF1.1 and 8.1.x before 8.1.3 HF1.2; CSAPI before 10.0.4 HF01; Symantec Message Gateway (SMG) before 10.6.1-4; Symantec Message Gateway for Service Providers (SMG-SP) 10.5 before patch 254 and 10.6 before patch 253; Norton AntiVirus, Norton Security, Norton Internet Security, and Norton 360 before NGC 22.7; Norton Security for Mac before 13.0.2; Norton Power Eraser (NPE) before 5.1; and Norton Bootable Removal Tool (NBRT) before 2016.1 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via modified MIME data in a message.","published":"2016-06-30T23:59:06.000Z","lastModified":"2026-06-17T00:46:08.000Z","status":"Modified","sourceIdentifier":"secure@symantec.com","cvss":{"version":"3.0","score":8.4,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-20"],"affected":["symantec/norton security","symantec/protection engine","symantec/advanced threat protection","symantec/norton bootable removal tool","symantec/data center security server","symantec/protection for sharepoint servers","symantec/message gateway for service providers","symantec/csapi","symantec/endpoint protection","symantec/norton power eraser","symantec/mail security for domino","symantec/mail security for microsoft exchange","symantec/message gateway","symantec/norton 360","symantec/norton antivirus","symantec/norton internet security","symantec/norton security with backup","symantec/ngc"],"epss":{"score":0.17739,"percentile":0.9717,"date":"2026-11-04","history":[{"date":"2026-09-21","score":0.21674,"percentile":0.97572},{"date":"2026-09-22","score":0.17739,"percentile":0.97024}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2016-06-29","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":40034,"kind":"exploit","title":"Symantec AntiVirus - Heap Overflow Modifying MIME Messages","url":"https://www.exploit-db.com/exploits/40034","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/40034.txt","file":"exploits/multiple/dos/40034.txt","published":"2016-06-29","added":"2016-06-29","updated":"2016-06-29","author":"Google Security Research","type":"dos","platform":"multiple","port":null,"verified":true,"codes":["CVE-2016-3644"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=818"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 17.7%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/91431","tags":["Third Party Advisory","VDB Entry"],"source":"secure@symantec.com"},{"url":"http://www.securitytracker.com/id/1036198","tags":["Third Party Advisory","VDB Entry"],"source":"secure@symantec.com"},{"url":"http://www.securitytracker.com/id/1036199","tags":["Third Party Advisory","VDB Entry"],"source":"secure@symantec.com"},{"url":"https://www.exploit-db.com/exploits/40034/","tags":["Third Party Advisory","VDB Entry"],"source":"secure@symantec.com"},{"url":"https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160628_00","tags":["Vendor Advisory"],"source":"secure@symantec.com"},{"url":"http://www.securityfocus.com/bid/91431","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1036198","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1036199","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/40034/","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160628_00","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-3644","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."}