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CVE-2020-10136 Cisco NX-OS

Affected softwareCisco NX-OS
Severity5.3 Medium CVSS 3.1 2 scores
WeaknessCWE-290
Published2 Jun 2020
Updated17 Jun 2026

Description

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.

Exploitation status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue lists this CVE.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC 1 indexed Published artifacts you can open, in GitHub PoC; first seen 2025-01-21.
  • EPSS 29% chance in 30 days A model's forecast, not a report of exploitation. Higher than 98% of all scored CVEs.
IndexArtifactStarsFirst seen
GitHub PoC Scanner and attack suite for hosts that forward unauthenticated packets via IPIP and GRE protocols. (CVE-2020-10136 CVE-2024-7595) 12 2025-01-21

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review automated Upstream data
  • Record active
Decided by The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached
Finding This CVE names only products the Waratek agent cannot be installed into (cisco/unified_computing_system). They ship as sealed appliance images or as native code with no application JVM, so there is no start-up line to add -javaagent to. The vulnerability may well be a Java one; it is permanently out of ARMR's reach rather than outside its subject.

CVSS

5.3 MEDIUM v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L NVD Primary published
CVSS 2.0 5.0 none AV:N/AC:L/Au:N/C:N/I:N/A:P NVD Primary

Affected software and releases

Products and versions

6 products, 258 version entries
SourceVendorProductSchemeAffected versions
nvd cisco nx-os generic 5.0\(3\)a1\(1\) · 5.0\(3\)u1\(1\) · 5.0\(3\)u1\(1a\) · 5.0\(3\)u1\(1b\) · 5.0\(3\)u1\(1c\) · 5.0\(3\)u1\(1d\) · 5.0\(3\)a1\(2\) · 5.0\(3\)a1\(2a\) · 5.0\(3\)u1\(2\) · 5.0\(3\)u1\(2a\) · 5.0\(3\)u2\(1\) · 5.0\(3\)u2\(2\) · 5.0\(3\)u2\(2a\) · 5.0\(3\)u2\(2b\) · 5.0\(3\)u2\(2c\) · 5.0\(3\)u2\(2d\) · 5.0\(3\)u3\(1\) · 5.0\(3\)u3\(2\) · 5.0\(3\)u3\(2a\) · 5.0\(3\)u3\(2b\) · 5.0\(3\)u4\(1\) · 5.0\(3\)u5\(1\) · 5.0\(3\)u5\(1a\) · 5.0\(3\)u5\(1b\) · 5.0\(3\)u5\(1c\) · 5.0\(3\)u5\(1d\) · 5.0\(3\)u5\(1e\) · 5.0\(3\)u5\(1f\) · 5.0\(3\)u5\(1g\) · 5.0\(3\)u5\(1h\) · 5.0\(3\)u5\(1i\) · 5.0\(3\)u5\(1j\) · 5.2\(1\) · 5.2\(1\)n1\(1\) · 5.2\(1\)n1\(1a\) · 5.2\(1\)n1\(1b\) · 5.2\(1\)n1\(2\) · 5.2\(1\)n1\(2a\) · 5.2\(1\)n1\(3\) · 5.2\(1\)n1\(4\) · 5.2\(1\)n1\(5\) · 5.2\(1\)sm1\(5.1\) · 5.2\(1\)sm1\(5.2\) · 5.2\(1\)sm1\(5.2a\) · 5.2\(1\)sm1\(5.2b\) · 5.2\(1\)sm1\(5.2c\) · 5.2\(1\)n1\(6\) · 5.2\(1\)n1\(7\) · 5.2\(1\)n1\(8\) · 5.2\(1\)n1\(8a\) · 5.2\(1\)n1\(8b\) · 5.2\(1\)n1\(9\) · 5.2\(1\)n1\(9a\) · 5.2\(1\)n1\(9b\) · 5.2\(1\)sk3\(1.1\) · 5.2\(1\)sm3\(1.1\) · 5.2\(1\)sm3\(1.1a\) · 5.2\(1\)sm3\(1.1b\) · 5.2\(1\)sm3\(1.1c\) · 5.2\(1\)sv3\(1.1\) · 5.2\(1\)sv3\(1.2\) · 5.2\(1\)sv3\(1.3\) · 5.2\(1\)sv3\(1.4\) · 5.2\(1\)sv3\(1.4b\) · 5.2\(1\)sv3\(1.5a\) · 5.2\(1\)sv3\(1.5b\) · 5.2\(1\)sv3\(1.6\) · 5.2\(1\)sv3\(1.10\) · 5.2\(1\)sv3\(1.15\) · 5.2\(1\)sk3\(2.1\) · 5.2\(1\)sk3\(2.1a\) · 5.2\(1\)sm3\(2.1\) · 5.2\(1\)sv3\(2.1\) · 5.2\(1\)sk3\(2.2\) · 5.2\(1\)sk3\(2.2b\) · 5.2\(1\)sv3\(2.5\) · 5.2\(1\)sv3\(2.8\) · 5.2\(1\)sv3\(3.1\) · 5.2\(1\)sv3\(3.15\) · 5.2\(1\)sv3\(4.1\) · 5.2\(1\)sv3\(4.1a\) · 5.2\(1\)sv3\(4.1b\) · 5.2\(1\)sv5\(1.1\) · 5.2\(1\)sv5\(1.2\) · 5.2\(1\)sv5\(1.3\) · 5.2\(3\) · 5.2\(3a\) · 5.2\(4\) · 5.2\(5\) · 5.2\(7\) · 5.2\(9\) · 5.2\(9a\) · 6.0\(2\)a1\(1\) · 6.0\(2\)a1\(1a\) · 6.0\(2\)a1\(1b\) · 6.0\(2\)a1\(1c\) · 6.0\(2\)a1\(1d\) · 6.0\(2\)a1\(1e\) · 6.0\(2\)a1\(1f\) · 6.0\(2\)u1\(1\) · 6.0\(2\)u1\(1a\) · 6.0\(2\)n1\(1\) · 6.0\(2\)n1\(1a\) · 6.0\(2\)a1\(2d\) · 6.0\(2\)u1\(2\) · 6.0\(2\)n1\(2\) · 6.0\(2\)n1\(2a\) · 6.0\(2\)u1\(3\) · 6.0\(2\)u1\(4\) · 6.0\(2\)u2\(1\) · 6.0\(2\)n2\(1\) · 6.0\(2\)n2\(1b\) · 6.0\(2\)u2\(2\) · 6.0\(2\)n2\(2\) · 6.0\(2\)u2\(3\) · 6.0\(2\)n2\(3\) · 6.0\(2\)u2\(4\) · 6.0\(2\)n2\(4\) · 6.0\(2\)u2\(4.92.4z\) · 6.0\(2\)u2\(5\) · 6.0\(2\)n2\(5\) · 6.0\(2\)n2\(5a\) · 6.0\(2\)n2\(5b\) · 6.0\(2\)u2\(6\) · 6.0\(2\)n2\(6\) · 6.0\(2\)n2\(7\) · 6.0\(2\)a3\(1\) · 6.0\(2\)u3\(1\) · 6.0\(2\)a3\(2\) · 6.0\(2\)u3\(2\) · 6.0\(2\)u3\(3\) · 6.0\(2\)a3\(4\) · 6.0\(2\)u3\(4\) · 6.0\(2\)u3\(5\) · 6.0\(2\)u3\(6\) · 6.0\(2\)u3\(7\) · 6.0\(2\)u3\(8\) · 6.0\(2\)u3\(9\) · 6.0\(2\)a4\(1\) · 6.0\(2\)u4\(1\) · 6.0\(2\)a4\(2\) · 6.0\(2\)u4\(2\) · 6.0\(2\)a4\(3\) · 6.0\(2\)u4\(3\) · 6.0\(2\)a4\(4\) · 6.0\(2\)u4\(4\) · 6.0\(2\)a4\(5\) · 6.0\(2\)a4\(6\) · 6.0\(2\)u5\(1\) · 6.1\(2\)i1\(2\) · 6.1\(2\)i1\(3\) · 6.1\(2\)i2\(1\) · 6.1\(2\)i2\(2b\) · 6.1\(2\)i2\(2\) · 6.1\(2\)i2\(2a\) · 6.1\(2\)i2\(3\) · 6.1\(2\)i3\(1\) · 6.1\(2\)i3\(2\) · 6.1\(2\)i3\(3\) · 6.1\(2\)i3\(3a\) · 6.2\(2\) · 6.2\(2a\) · 6.2\(6\) · 6.2\(6a\) · 6.2\(6b\) · 6.2\(8\) · 6.2\(8a\) · 6.2\(8b\) · 6.2\(10\) · 6.2\(12\) · 6.2\(14\) · 6.2\(14a\) · 6.2\(14b\) · 6.2\(16\) · 6.2\(18\) · 6.2\(20\) · 6.2\(20a\) · 6.2\(22\) · 6.2\(24\) · 7.0\(0\)n1\(1\) · 7.0\(1\)n1\(1\) · 7.0\(2\)n1\(1\) · 7.0\(3\)i1\(1\) · 7.0\(3\)i1\(1a\) · 7.0\(3\)i1\(1b\) · 7.0\(3\)i1\(1z\) · 7.0\(3\)n1\(1\) · 7.0\(4\)n1\(1\) · 7.0\(4\)n1\(1a\) · 7.0\(5\)n1\(1\) · 7.0\(5\)n1\(1a\) · 7.0\(6\)n1\(1\) · 7.0\(6\)n1\(2s\) · 7.0\(6\)n1\(3s\) · 7.0\(6\)n1\(4s\) · 7.0\(7\)n1\(1\) · 7.0\(7\)n1\(1a\) · 7.0\(7\)n1\(1b\) · 7.0\(8\)n1\(1\) · 7.0\(8\)n1\(1a\) · 7.1\(0\)n1\(1\) · 7.1\(0\)n1\(1a\) · 7.1\(0\)n1\(1b\) · 7.1\(1\)n1\(1\) · 7.1\(1\)n1\(1a\) · 7.1\(2\)n1\(1\) · 7.1\(2\)n1\(1a\) · 7.1\(3\)n1\(1\) · 7.1\(3\)n1\(2\) · 7.1\(3\)n1\(2a\) · 7.1\(3\)n1\(3\) · 7.1\(3\)n1\(4\) · 7.1\(3\)n1\(5\) · 7.1\(4\)n1\(1\) · 7.1\(4\)n1\(1a\) · 7.1\(4\)n1\(1c\) · 7.1\(4\)n1\(1d\) · 7.1\(5\)n1\(1\) · 7.1\(5\)n1\(1b\) · 7.2\(0\)d1\(1\) · 7.2\(1\)n1\(1\) · 7.2\(1\)d1\(1\) · 7.2\(2\)d1\(1\) · 7.2\(2\)d1\(2\) · 7.2\(2\)d1\(3\) · 7.2\(2\)d1\(4\) · 7.3\(0\)dx\(1\) · 7.3\(0\)n1\(1\) · 7.3\(0\)n1\(1a\) · 7.3\(0\)n1\(1b\) · 7.3\(0\)d1\(1\) · 7.3\(1\)n1\(1\) · 7.3\(1\)d1\(1\) · 7.3\(2\)n1\(1\) · 7.3\(2\)n1\(1b\) · 7.3\(2\)n1\(1c\) · 7.3\(2\)d1\(1\) · 7.3\(2\)d1\(1d\) · 7.3\(2\)d1\(2\) · 7.3\(2\)d1\(3\) · 7.3\(2\)d1\(3a\) · 7.3\(3\)n1\(1\) · 7.3\(3\)d1\(1\) · 7.3\(4\)n1\(1\) · 7.3\(4\)n1\(1a\) · 7.3\(4\)d1\(1\) · 7.3\(5\)n1\(1\) · 7.3\(5\)d1\(1\) · 7.3\(6\)n1\(1\) · 7.3\(6\)n1\(1a\) · 7.3\(6\)d1\(1\) · 7.3\(7\)n1\(1\) · 7.3\(7\)n1\(1a\)
nvd cisco ucs manager generic 3.2\(3n\)a
nvd cisco unified computing system generic any version
nvd digi saros generic < 8.1.0.1
nvd hp x3220nr firmware generic < 3.0.11.8
nvd treck tcp\/ip generic < 6.0.1.67

References

URLTags
https://datatracker.ietf.org/doc/html/rfc6169
https://kb.cert.org/vuls/id/636397/ Third Party Advisory, US Government Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ipip-dos-kCT9X4 Vendor Advisory
https://www.digi.com/resources/security Third Party Advisory
https://www.kb.cert.org/vuls/id/636397 Third Party Advisory, US Government Resource
https://www.kb.cert.org/vuls/id/199397

Timeline

Published2020-06-02By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.