CVE-2016-5080
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…
Does this matter?
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.
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 10.06% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- objective systems/asn1c
- Source
- cret@cert.org
EPSS 10.1% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://packetstormsecurity.com/files/137970/Objective-Systems-Inc.-ASN1C-For-C-C-Heap-Memory-Corruption.html
- http://seclists.org/fulldisclosure/2016/Jul/65
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160721-asn1c
- http://www.kb.cert.org/vuls/id/790839Third Party Advisory, US Government Resource
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/archive/1/538952/100/0/threaded
- http://www.securityfocus.com/bid/91836
- http://www.securitytracker.com/id/1036386
- https://github.com/programa-stic/security-advisories/tree/master/ObjSys/CVE-2016-5080Technical Description, Third Party Advisory
- https://source.android.com/security/bulletin/2017-01-01.html
- https://www.ncsc.nl/dienstverlening/response-op-dreigingen-en-incidenten/beveiligingsadviezen/NCSC-2016-0650+1.00+Kwetsbaarheid+verholpen+in+ASN1C.htmlThird Party Advisory
- http://packetstormsecurity.com/files/137970/Objective-Systems-Inc.-ASN1C-For-C-C-Heap-Memory-Corruption.html
- http://seclists.org/fulldisclosure/2016/Jul/65
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160721-asn1c
- http://www.kb.cert.org/vuls/id/790839Third Party Advisory, US Government Resource
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/archive/1/538952/100/0/threaded
- http://www.securityfocus.com/bid/91836
- http://www.securitytracker.com/id/1036386
- https://github.com/programa-stic/security-advisories/tree/master/ObjSys/CVE-2016-5080Technical Description, Third Party Advisory
- https://source.android.com/security/bulletin/2017-01-01.html
- https://www.ncsc.nl/dienstverlening/response-op-dreigingen-en-incidenten/beveiligingsadviezen/NCSC-2016-0650+1.00+Kwetsbaarheid+verholpen+in+ASN1C.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.