CVE-2025-20126

MEDIUMNVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

Score 4.8 from GitHub Security Advisory published 2025-01-08. NVD baseline CVSS 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.8
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.8Exploit: NoneExposed: 0

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

A vulnerability in certification validation routines of Cisco ThousandEyes Endpoint Agent for macOS and RoomOS could allow an unauthenticated, remote attacker to intercept or manipulate metrics information. This vulnerability exists because the affected software does not properly validate certificates for hosted metrics services. An on-path attacker could exploit this vulnerability by intercepting network traffic using a crafted certificate. A successful exploit could allow the attacker to masquerade as a trusted host and monitor or change communications between the remote metrics service and the vulnerable client.

CVSS v3
4.8
EG Score
4.8(medium)
EG Risk
22(Track)
EG Risk 22/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity48% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
6.4%
KEV
Not listed

Published

January 8, 2025

Last Modified

July 22, 2025

References (1)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 39× 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. 2026-07-25 14:17 UTCEPSS rescore
  2. 2026-07-24 14:16 UTCEPSS rescore
  3. 2026-07-23 14:17 UTCEPSS rescore
  4. 2026-07-23 02:49 UTCEG score recompute
  5. 2026-07-22 14:07 UTCEPSS rescore
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  7. 2026-07-21 15:24 UTCEPSS rescore
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  1. 2026-07-09 19:09 UTCEPSS rescore
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  19. 2026-06-23 21:32 UTCEPSS rescore
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  22. 2026-06-21 14:56 UTCEPSS rescore
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  24. 2026-06-21 01:59 UTCEPSS rescore
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  26. 2026-06-19 19:25 UTCEPSS rescore
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  36. 2026-06-11 13:59 UTCEPSS rescore
  37. 2026-06-10 22:18 UTCEPSS rescore
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  39. 2026-06-08 14:16 UTCEPSS rescore
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  41. 2026-06-07 15:24 UTCEPSS rescore
  42. 2026-06-06 13:47 UTCEPSS rescore
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  44. 2026-06-05 22:46 UTCEPSS rescore
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  46. 2026-06-05 06:10 UTCEPSS rescore
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  48. 2026-06-04 13:11 UTCEPSS rescore
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  50. 2026-06-02 20:12 UTCEPSS rescore
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  52. 2026-06-01 13:51 UTCEPSS rescore
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  54. 2026-05-31 22:30 UTCEPSS rescore
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  56. 2026-05-31 00:16 UTCEPSS rescore
  57. 2026-05-31 00:16 UTCEPSS rescore
  58. 2026-05-30 14:00 UTCEG score recompute
  59. 2026-05-30 14:00 UTCGHSA enrichment
  60. 2026-05-29 13:44 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-20126?
CVE-2025-20126 is a medium vulnerability published on January 8, 2025. A vulnerability in certification validation routines of Cisco ThousandEyes Endpoint Agent for macOS and RoomOS could allow an unauthenticated, remote attacker to intercept or manipulate metrics information. This vulnerability exists because the affected software does not properly validate…
When was CVE-2025-20126 disclosed?
CVE-2025-20126 was first published in the National Vulnerability Database on January 8, 2025, with the most recent update on July 22, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-20126 actively exploited?
CVE-2025-20126 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-20126?
CVE-2025-20126 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2025-20126?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-20126, 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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