{"id":"CVE-2016-5636","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-5636","generatedAt":"2026-11-05T05:18:50.104Z","title":"Integer overflow in the get_data function in zipimport.c in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 allows remote attackers to have unspecified impact via a negative data size value, which triggers a heap-based…","description":"Integer overflow in the get_data function in zipimport.c in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 allows remote attackers to have unspecified impact via a negative data size value, which triggers a heap-based buffer overflow.","published":"2016-09-02T14:59:06.000Z","lastModified":"2026-06-17T00:49:48.000Z","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-190"],"affected":["python/python"],"epss":{"score":0.2548,"percentile":0.97958,"date":"2026-11-04","history":[{"date":"2026-09-21","score":0.22402,"percentile":0.97641},{"date":"2026-09-22","score":0.2548,"percentile":0.97856}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 25.5%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-2586.html","source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2016/06/15/15","tags":["Mailing List"],"source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2016/06/16/1","tags":["Mailing List"],"source":"cve@mitre.org"},{"url":"http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/91247","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1038138","source":"cve@mitre.org"},{"url":"http://www.splunk.com/view/SP-CAAAPSV","source":"cve@mitre.org"},{"url":"http://www.splunk.com/view/SP-CAAAPUE","source":"cve@mitre.org"},{"url":"https://bugs.python.org/issue26171","tags":["Issue Tracking","Patch"],"source":"cve@mitre.org"},{"url":"https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5","tags":["Release Notes"],"source":"cve@mitre.org"},{"url":"https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2","tags":["Release Notes"],"source":"cve@mitre.org"},{"url":"https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS","tags":["Release Notes"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html","source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201701-18","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-2586.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/06/15/15","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/06/16/1","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/91247","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1038138","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.splunk.com/view/SP-CAAAPSV","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.splunk.com/view/SP-CAAAPUE","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.python.org/issue26171","tags":["Issue Tracking","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5","tags":["Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2","tags":["Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS","tags":["Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201701-18","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-5636","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."}