CVE-2020-11906

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.3 under NVD CVSS v3. EPSS exploit probability: 2.0%, top 22% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 2%CVSS: 6.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The Treck TCP/IP stack before 6.0.1.66 has an Ethernet Link Layer Integer Underflow.

CVSS v3
6.3
EG Score
6.3(medium)
EPSS
78.2%
KEV
Not listed

Published

June 17, 2020

Last Modified

November 21, 2024

References (20)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 22:33 UTCEG score recompute
  2. 2026-07-22 14:05 UTCEPSS rescore
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  63. 2026-05-27 13:39 UTCEPSS rescore
  64. 2026-05-27 02:23 UTCEG score recompute
  65. 2026-05-27 02:23 UTCGHSA enrichment
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Frequently asked(5)

What is CVE-2020-11906?
CVE-2020-11906 is a medium vulnerability published on June 17, 2020. The Treck TCP/IP stack before 6.0.1.66 has an Ethernet Link Layer Integer Underflow.
When was CVE-2020-11906 disclosed?
CVE-2020-11906 was first published in the National Vulnerability Database on June 17, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-11906 actively exploited?
CVE-2020-11906 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-11906?
CVE-2020-11906 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2020-11906?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-11906, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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