CVE-2020-11899

criticalknown exploitedcovered by 1 sourcefirst seen 2022-03-03

Actively exploited. CVE-2020-11899 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.

The Treck TCP/IP stack contains an IPv6 out-of-bounds read vulnerability.

CSIRTS triage

What: The Treck TCP/IP stack contains an IPv6 out-of-bounds read vulnerability.
Who is affected: Deployments using the Treck TCP/IP stack are affected.
Urgency: Remediation is critical due to the severity of the vulnerability and confirmed exploitation.
Action: Update to the patched version of the Treck TCP/IP stack.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 97% of all EPSS-scored CVEs.

Advisory coverage (1)

criticalexploitedCVE-2020-11899: Treck TCP/IP stack Out-of-Bounds Read Vulnerabilitycisa-kev · 2022-03-03

External references

NVD record for CVE-2020-11899

CVE.org record

CISA KEV catalog

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