CVE-2020-11896
CVE-2020-11896 is a critical-severity vulnerability in Treck Tcp/ip with a CVSS 3.x base score of 10.0. Its EPSS exploit-prediction score of 37% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Critical (CVSS 3.x base score 10.0)
- CVSS v2: 9.3
- EPSS exploit prediction: 37% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Treck Tcp/ip
- Published:
- Last modified:
Description
The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.
Frequently asked questions
- What is CVE-2020-11896?
- The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.
- How severe is CVE-2020-11896?
- CVE-2020-11896 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-11896 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 37% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-11896?
- CVE-2020-11896 affects Treck Tcp/ip. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-11896?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-11896 published?
- CVE-2020-11896 was published on 2020-06-17 and last updated on 2026-06-17.
References
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-006.txt
- https://cert-portal.siemens.com/productcert/pdf/ssa-631949.pdf
- https://jsof-tech.com/vulnerability-disclosure-policy/
- https://security.netapp.com/advisory/ntap-20200625-0006/
- https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=hpesbhf04012en_us
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-treck-ip-stack-JyBQ5GyC
- https://www.dell.com/support/article/de-de/sln321836/dell-response-to-the-ripple20-vulnerabilities
- https://www.jsof-tech.com/ripple20/
- https://www.kb.cert.org/vuls/id/257161
- https://www.kb.cert.org/vuls/id/257161/
- https://www.treck.com
Affected products (1)
- cpe:2.3:a:treck:tcp\/ip:*:*:*:*:*:*:*:*
More vulnerabilities in Treck Tcp/ip
- CVE-2020-25066 — Critical (CVSS 10.0): A heap-based buffer overflow in the Treck HTTP Server component before 6.0.1.68 allows remote attackers to cause a…
- CVE-2020-11897 — Critical (CVSS 10.0): The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6 packets.
- CVE-2020-11898 — Critical (CVSS 9.1): The Treck TCP/IP stack before 6.0.1.66 improperly handles an IPv4/ICMPv4 Length Parameter Inconsistency, which might…
- CVE-2020-11901 — Critical (CVSS 9.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code execution via a single invalid DNS response.
- CVE-2020-11900 — High (CVSS 8.2): The Treck TCP/IP stack before 6.0.1.41 has an IPv4 tunneling Double Free.
- CVE-2020-11904 — High (CVSS 7.3): The Treck TCP/IP stack before 6.0.1.66 has an Integer Overflow during Memory Allocation that causes an Out-of-Bounds…
All CVEs affecting Treck Tcp/ip →
Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities
- CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
- CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
- CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
- CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2020-0796 — Critical (CVSS 10.0): A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol…