{"id":"CVE-2016-5080","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-5080","generatedAt":"2026-11-05T05:24:17.617Z","title":"Integer overflow in the rtxMemHeapAlloc function in asn1rt_a.lib in Objective Systems ASN1C for C/C++ before 7.0.2 allows context-dependent attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow), on a system…","description":"Integer overflow in the rtxMemHeapAlloc function in asn1rt_a.lib in Objective Systems ASN1C for C/C++ before 7.0.2 allows context-dependent attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow), on a system running an application compiled by ASN1C, via crafted ASN.1 data.","published":"2016-07-19T22:59:01.000Z","lastModified":"2026-06-17T00:48:44.000Z","status":"Modified","sourceIdentifier":"cret@cert.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":[],"affected":["objective systems/asn1c"],"epss":{"score":0.10064,"percentile":0.95641,"date":"2026-11-04","history":[]},"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 10.1%, higher than 96% 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":0.10064,"from":0.09525,"percentile":0.95413},"summary":"EPSS moved from 9.5% to 10.1% probability of exploitation in the next thirty days."}],"references":[{"url":"http://packetstormsecurity.com/files/137970/Objective-Systems-Inc.-ASN1C-For-C-C-Heap-Memory-Corruption.html","source":"cret@cert.org"},{"url":"http://seclists.org/fulldisclosure/2016/Jul/65","source":"cret@cert.org"},{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160721-asn1c","source":"cret@cert.org"},{"url":"http://www.kb.cert.org/vuls/id/790839","tags":["Third Party Advisory","US Government Resource"],"source":"cret@cert.org"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html","source":"cret@cert.org"},{"url":"http://www.securityfocus.com/archive/1/538952/100/0/threaded","source":"cret@cert.org"},{"url":"http://www.securityfocus.com/bid/91836","source":"cret@cert.org"},{"url":"http://www.securitytracker.com/id/1036386","source":"cret@cert.org"},{"url":"https://github.com/programa-stic/security-advisories/tree/master/ObjSys/CVE-2016-5080","tags":["Technical Description","Third Party Advisory"],"source":"cret@cert.org"},{"url":"https://source.android.com/security/bulletin/2017-01-01.html","source":"cret@cert.org"},{"url":"https://www.ncsc.nl/dienstverlening/response-op-dreigingen-en-incidenten/beveiligingsadviezen/NCSC-2016-0650+1.00+Kwetsbaarheid+verholpen+in+ASN1C.html","tags":["Third Party Advisory"],"source":"cret@cert.org"},{"url":"http://packetstormsecurity.com/files/137970/Objective-Systems-Inc.-ASN1C-For-C-C-Heap-Memory-Corruption.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2016/Jul/65","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160721-asn1c","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.kb.cert.org/vuls/id/790839","tags":["Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/538952/100/0/threaded","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/91836","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1036386","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/programa-stic/security-advisories/tree/master/ObjSys/CVE-2016-5080","tags":["Technical Description","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://source.android.com/security/bulletin/2017-01-01.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.ncsc.nl/dienstverlening/response-op-dreigingen-en-incidenten/beveiligingsadviezen/NCSC-2016-0650+1.00+Kwetsbaarheid+verholpen+in+ASN1C.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-5080","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."}