01 Record
CVE-2020-10136
IP-in-IP protocol allows a remote, unauthenticated attacker to route arbitrary network traffic
UnratedPUBLISHEDCNA: certcc
CNA base scoreUnratedNo CNA CVSS vector
02 Description
IP-in-IP protocol allows a remote, unauthenticated attacker to route arbitrary network traffic
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 28.53% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 97.9% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-06-02 08:35Z6 YR AGO
- Last updated
- 2025-11-03 20:33Z11 MO AGO
- Reserved
- 2020-03-05
- Assigning CNA
- certcc
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.2
- Document digest
- 2e344f67efb9afc13126eec62284c7e3f1770f4c7b89c619543d7b9e8cc340f7
05 Affected products
VendorProductVersionsPlatforms
06 References
- kb.cert.orgVU#636397https://kb.cert.org/vuls/id/636397/
- tools.cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ipip-dos-kCT9X4
- www.digi.comhttps://www.digi.com/resources/security
- www.kb.cert.orgVU#636397https://www.kb.cert.org/vuls/id/636397
- datatracker.ietf.orgSecurity Concerns with IP Tunnelinghttps://datatracker.ietf.org/doc/html/rfc6169
- www.kb.cert.orghttps://www.kb.cert.org/vuls/id/199397
07 Remediation
Customers should apply the latest patch provided by the affected vendor that addresses this issue and prevents unspecified IP-in-IP packets from being processed. Devices manufacturers are urged to disable IP-in-IP in their default configuration and require their customers to explicitly configure IP-in-IP as and when needed.