Vulnerability in Cisco Nexus 1000v
CVE-2020-10136
IP-in-IP protocol specifies IP Encapsulation within IP standard (RFC 2003, STD 1) that decapsulate and route IP-in-IP traffic is vulnerable to spoofing, access-control bypass and other unexpected behavior due to the lack of validation to verify network packets before decapsulation and routing.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.285 (98.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.285 · newest: 0.285 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- kb.cert.org/vuls/id/636397/ (US Government Resource, Third Party Advisory)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ipi… (Vendor Advisory)
- www.digi.com/resources/security (Third Party Advisory)
- www.kb.cert.org/vuls/id/636397 (US Government Resource, Third Party Advisory)
- datatracker.ietf.org/doc/html/rfc6169
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2020-10136?
- CVE-2020-10136 is a medium-severity vulnerability in Cisco Nexus 1000v, classified under Authentication Bypass by Spoofing. CVSS score: 5.3/10. Published 2020-06-02.
- How severe is CVE-2020-10136?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2020-10136 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.