Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). Versions of Filesystem prior to 0.6.4 or 2025.7.01 could allow access to unintended files via symlinks within allowed directories. Users are advised to upgrade to 0.6.4 or 2025.7.01 resolve.
CVE-2025-53109
HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.3 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 33% 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
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.3Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.3
- EG Score
- 7.3(medium)
- EPSS
- 48.6%
- KEV
- Not listed
Published
July 2, 2025
Last Modified
April 15, 2026
References (2)
- security-advisories@githubhttps://github.com/modelcontextprotocol/servers/commit/d00c60df9d74dba8a3bb13113f8904407cda594f
- security-advisories@githubhttps://github.com/modelcontextprotocol/servers/security/advisories/GHSA-q66q-fx2p-7w4m
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| @modelcontextprotocol/server-filesystem | — | 2025.7.1 | — |
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2025-53109?
CVE-2025-53109 is a high vulnerability published on July 2, 2025. Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). Versions of Filesystem prior to 0.6.4 or 2025.7.01 could allow access to unintended files via symlinks within allowed directories. Users are advised to upgrade to 0.6.4 or 2025.7.01…
When was CVE-2025-53109 disclosed?
CVE-2025-53109 was first published in the National Vulnerability Database on July 2, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-53109 actively exploited?
CVE-2025-53109 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-53109?
CVE-2025-53109 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2025-53109?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-53109, 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-2025-53109
Is Your Infrastructure Affected by CVE-2025-53109?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.