CVE-2020-11901

CRITICALNVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 21.1%, top 3% 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
Elevated
9.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 21%CVSS: 9.0Exploit: 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 allows Remote Code execution via a single invalid DNS response.

CVSS v3
9.0
EG Score
9.0(medium)
EG Risk
—
EPSS
97.3%
KEV
Not listed

Published

June 17, 2020

Last Modified

November 21, 2024

References (16)

Weakness Classification(5)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 35× 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
  3. 2026-07-21 15:22 UTCEPSS rescore
  4. 2026-07-21 15:22 UTCEPSS rescore
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  1. 2026-06-28 14:05 UTCEPSS rescore
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  4. 2026-06-27 03:06 UTCEPSS rescore
  5. 2026-06-25 13:47 UTCEPSS rescore
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  21. 2026-06-15 17:46 UTCEPSS rescore
  22. 2026-06-14 23:15 UTCEPSS rescore
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  24. 2026-06-13 22:58 UTCEPSS rescore
  25. 2026-06-13 22:58 UTCEPSS rescore
  26. 2026-06-12 23:09 UTCEPSS rescore
  27. 2026-06-11 13:58 UTCEPSS rescore
  28. 2026-06-10 22:16 UTCEPSS rescore
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  30. 2026-06-10 13:20 UTCEPSS rescore
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  39. 2026-06-02 20:11 UTCEPSS rescore
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  41. 2026-06-01 13:50 UTCEPSS rescore
  42. 2026-05-31 22:29 UTCEPSS rescore
  43. 2026-05-31 22:29 UTCEPSS rescore
  44. 2026-05-31 00:15 UTCEPSS rescore
  45. 2026-05-31 00:14 UTCEPSS rescore
  46. 2026-05-29 13:42 UTCEPSS rescore
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  48. 2026-05-28 13:43 UTCEPSS rescore
  49. 2026-05-28 13:43 UTCEPSS rescore
  50. 2026-05-27 13:39 UTCEPSS rescore
  51. 2026-05-27 02:23 UTCEG score recompute
  52. 2026-05-27 02:23 UTCGHSA enrichment
  53. 2026-05-26 13:42 UTCEPSS rescore
  54. 2026-05-26 13:42 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2020-11901?
CVE-2020-11901 is a critical vulnerability published on June 17, 2020. The Treck TCP/IP stack before 6.0.1.66 allows Remote Code execution via a single invalid DNS response.
When was CVE-2020-11901 disclosed?
CVE-2020-11901 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-2020-11901 actively exploited?
CVE-2020-11901 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-11901?
CVE-2020-11901 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2020-11901?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-11901, 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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