CVE-2016-1436
CVE-2016-1436 is a high-severity vulnerability in Cisco Asr 5000 Software with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 2% (75th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Cisco Asr 5000 Software
- Published:
- Last modified:
Description
The General Packet Radio Switching Tunneling Protocol 1 (aka GTPv1) implementation on Cisco ASR 5000 Packet Data Network Gateway devices before 19.4 allows remote attackers to cause a denial of service (Session Manager process restart) via a crafted GTPv1 packet, aka Bug ID CSCuz46198.
Frequently asked questions
- What is CVE-2016-1436?
- The General Packet Radio Switching Tunneling Protocol 1 (aka GTPv1) implementation on Cisco ASR 5000 Packet Data Network Gateway devices before 19.4 allows remote attackers to cause a denial of service (Session Manager process restart) via a crafted GTPv1 packet, aka Bug ID CSCuz46198.
- How severe is CVE-2016-1436?
- CVE-2016-1436 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2016-1436 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-1436?
- CVE-2016-1436 primarily affects Cisco Asr 5000 Software. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2016-1436?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2016-1436 published?
- CVE-2016-1436 was published on 2016-06-23 and last updated on 2026-06-17.
References
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160621-asr
- http://www.securitytracker.com/id/1036152
Affected products (22)
- cpe:2.3:a:cisco:asr_5000_software:17.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:17.2.0.59184:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:17.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:17.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:18.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:18.0.0.57828:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:18.0.0.59167:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:18.0.0.59211:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:18.0.l0.59219:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:18.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:18.1.0.59776:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:18.1.0.59780:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:18.1_base:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:18.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:19.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:19.0.m0.60737:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:19.0.m0.60828:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:19.0.m0.61045:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:19.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:19.1.0.61559:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:19.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:asr_5000_software:19.3.0:*:*:*:*:*:*:*
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