CVE-2025-6514

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.6 under NVD CVSS v3. EPSS exploit probability: 16.1%, top 5% 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
9.6
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 77%
CISA-KEV: Not listedEPSS: 77%CVSS: 9.6Exploit: NoneExposed: 0

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

mcp-remote is exposed to OS command injection when connecting to untrusted MCP servers due to crafted input from the authorization_endpoint response URL

CVSS v3
9.6
EG Score
9.6(medium)
EPSS
99.5%
KEV
Not listed

Published

July 9, 2025

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated May 21, 2026
No patch confirmed yet.
generic

OS command injection in mcp-remote when connecting to untrusted MCP servers | JFSA-2025-001290844 - JFrog Security Research

https://research.jfrog.com/vulnerabilities/mcp-remote-command-injection-rce-jfsa-2025-001290844/
generic

CVE-2025-6514 Threatens LLM clients

https://jfrog.com/blog/2025-6514-critical-mcp-remote-rce-vulnerability
generic

Forcibly escape username/pass for basic auth URLs too · geelen/mcp-remote@607b226 · GitHub

https://github.com/geelen/mcp-remote/commit/607b226a356cb61a239ffaba2fb3db1c9dea4bac

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
mcp-remote—0.1.16—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 26× 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. 2026-07-11 08:27 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-10 09:52 UTCOSV refresh
  4. 2026-07-09 19:10 UTCEPSS rescore
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-01 15:06 UTCEPSS rescore
  7. 2026-06-28 04:56 UTCEPSS rescore
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-25 13:49 UTCEPSS rescore
  10. 2026-06-25 13:49 UTCEPSS rescore
  11. 2026-06-23 21:32 UTCEPSS rescore
  12. 2026-06-22 14:25 UTCEPSS rescore
  13. 2026-06-22 14:25 UTCEPSS rescore
  14. 2026-06-21 19:43 UTCOSV refresh
  15. 2026-06-21 01:59 UTCEPSS rescore
  16. 2026-06-21 01:59 UTCEPSS rescore
  17. 2026-06-18 17:52 UTCEPSS rescore
  18. 2026-06-18 17:52 UTCEPSS rescore
  19. 2026-06-17 17:53 UTCEPSS rescore
  20. 2026-06-16 17:52 UTCEPSS rescore
  21. 2026-06-15 17:48 UTCEPSS rescore
  22. 2026-06-14 23:18 UTCEPSS rescore
  23. 2026-06-13 23:00 UTCEPSS rescore
  24. 2026-06-13 23:00 UTCEPSS rescore
  25. 2026-06-12 23:12 UTCEPSS rescore
Show 53 more
  1. 2026-06-12 23:12 UTCEPSS rescore
  2. 2026-06-11 14:00 UTCEPSS rescore
  3. 2026-06-10 22:18 UTCEPSS rescore
  4. 2026-06-10 13:22 UTCEPSS rescore
  5. 2026-06-08 14:17 UTCEPSS rescore
  6. 2026-06-08 14:17 UTCEPSS rescore
  7. 2026-06-07 15:24 UTCEPSS rescore
  8. 2026-06-07 15:24 UTCEPSS rescore
  9. 2026-06-06 13:47 UTCEPSS rescore
  10. 2026-06-06 13:47 UTCEPSS rescore
  11. 2026-06-05 22:47 UTCEPSS rescore
  12. 2026-06-05 22:46 UTCEPSS rescore
  13. 2026-06-05 06:10 UTCEPSS rescore
  14. 2026-06-05 06:10 UTCEPSS rescore
  15. 2026-06-04 13:12 UTCEPSS rescore
  16. 2026-06-04 13:12 UTCEPSS rescore
  17. 2026-06-03 00:40 UTCOSV refresh
  18. 2026-06-02 20:13 UTCEPSS rescore
  19. 2026-06-01 13:51 UTCEPSS rescore
  20. 2026-06-01 13:51 UTCEPSS rescore
  21. 2026-05-31 22:30 UTCEPSS rescore
  22. 2026-05-31 22:30 UTCEPSS rescore
  23. 2026-05-31 00:16 UTCEPSS rescore
  24. 2026-05-31 00:16 UTCEPSS rescore
  25. 2026-05-29 13:44 UTCEPSS rescore
  26. 2026-05-29 13:44 UTCEPSS rescore
  27. 2026-05-28 13:44 UTCEPSS rescore
  28. 2026-05-28 13:44 UTCEPSS rescore
  29. 2026-05-28 13:44 UTCEPSS rescore
  30. 2026-05-27 13:40 UTCEPSS rescore
  31. 2026-05-27 13:40 UTCEPSS rescore
  32. 2026-05-27 13:40 UTCEPSS rescore
  33. 2026-05-27 13:40 UTCEPSS rescore
  34. 2026-05-26 13:44 UTCEPSS rescore
  35. 2026-05-26 13:44 UTCEPSS rescore
  36. 2026-05-26 13:44 UTCEPSS rescore
  37. 2026-05-26 07:18 UTCEPSS rescore
  38. 2026-05-26 07:18 UTCEPSS rescore
  39. 2026-05-26 07:18 UTCEPSS rescore
  40. 2026-05-24 16:58 UTCEPSS rescore
  41. 2026-05-23 00:09 UTCEG score recompute
  42. 2026-05-22 21:16 UTCEPSS rescore
  43. 2026-05-22 21:16 UTCEPSS rescore
  44. 2026-05-21 22:43 UTCEPSS rescore
  45. 2026-05-21 11:29 UTCEG score recompute
  46. 2026-05-20 22:37 UTCEPSS rescore
  47. 2026-05-20 22:37 UTCEPSS rescore
  48. 2026-05-20 22:37 UTCEPSS rescore
  49. 2026-05-20 11:21 UTCEPSS rescore
  50. 2026-05-20 11:21 UTCEPSS rescore
  51. 2026-05-20 11:21 UTCEPSS rescore
  52. 2026-05-20 04:03 UTCOSV refresh
  53. 2026-05-18 21:31 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCCyberency/CVE-2025-6514
    First seen Oct 26, 2025

    mcp-remote exposed to OS command injection

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-6514?
CVE-2025-6514 is a critical vulnerability published on July 9, 2025. mcp-remote is exposed to OS command injection when connecting to untrusted MCP servers due to crafted input from the authorization_endpoint response URL
When was CVE-2025-6514 disclosed?
CVE-2025-6514 was first published in the National Vulnerability Database on July 9, 2025, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-6514 actively exploited?
CVE-2025-6514 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-6514?
CVE-2025-6514 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2025-6514?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-6514, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-6514

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