Tcp Ip
CVE-2020-10136
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Anti-spoofing controls
MITRE ATT&CK
1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system. |
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Alert meAnalysisAI
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. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified under CWE-290. 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. Affected products include: Cisco Nx-Os, Cisco Ucs Manager, Digi Saros, Hp X3220Nr Firmware, Treck Tcp\/Ip.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)NVD
The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling. Rated critical severity
The Treck TCP/IP stack before 6.0.1.66 improperly handles an IPv4/ICMPv4 Length Parameter Inconsistency, which might all
The Treck TCP/IP stack before 6.0.1.66 allows Remote Code execution via a single invalid DNS response. Rated critical se
The Treck TCP/IP stack before 6.0.1.41 has an IPv4 tunneling Double Free. Rated high severity (CVSS 8.2), this vulnerabi
The Treck TCP/IP stack before 6.0.1.66 has an Integer Overflow during Memory Allocation that causes an Out-of-Bounds Wri
The Treck TCP/IP stack before 6.0.1.66 has an IPv6OverIPv4 tunneling Out-of-bounds Read. Rated high severity (CVSS 7.3),
The Treck TCP/IP stack before 6.0.1.66 has a DHCPv6 Out-of-bounds Read. Rated medium severity (CVSS 6.5), this vulnerabi
The Treck TCP/IP stack before 6.0.1.28 has a DHCP Out-of-bounds Read. Rated medium severity (CVSS 6.5), this vulnerabili
The Treck TCP/IP stack before 6.0.1.66 improperly handles a Length Parameter Inconsistency in TCP. Rated medium severity
The Treck TCP/IP stack before 6.0.1.66 has an Ethernet Link Layer Integer Underflow. Rated medium severity (CVSS 6.3), t
The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6 packets. Rated critical se
A heap-based buffer overflow in the Treck HTTP Server component before 6.0.1.68 allows remote attackers to cause a denia
GitHub PoC
Exploit-DB