CVE-2020-11900

Exp

The Treck TCP/IP stack before 6.0.1.41 has an IPv4 tunneling Double Free.

Published: 2020-06-17 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-11900 is rated High Exploit Risk (79.4/100): CVSS High severity, with high exploitation likelihood (EPSS 7.85%, 92th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-11900

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-11900

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-28 8.48% 7.85% -0.63%
2 2026-05-22 7.85% 8.48% +0.63%
3 2026-04-23 — 7.85% —

Full EPSS history (31 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-11900

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 4.2 [email protected]
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2020-11900

Affected software / configurations for CVE-2020-11900

Vendor Product Version Raw CPE
treck tcp\/ip < 6.0.1.41 cpe:2.3:a:treck:tcp\/ip:*:*:*:*:*:*:*:*

References for CVE-2020-11900

URL Tags
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-006.txt
https://jsof-tech.com/vulnerability-disclosure-policy/ Third Party Advisory
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 Third Party Advisory
https://www.dell.com/support/article/de-de/sln321836/dell-response-to-the-ripple20-vulnerabilities
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00295.html Not Applicable Third Party Advisory
https://www.jsof-tech.com/ripple20/ Exploit Third Party Advisory
https://www.kb.cert.org/vuls/id/257161
https://www.kb.cert.org/vuls/id/257161/ Mitigation Third Party Advisory US Government Resource
https://www.treck.com Product Vendor Advisory
cvelogic Threat Intelligence