CVE-2025-5277

CRITICALNVD 9.69.6—

9.6

aws-mcp-server MCP server is vulnerable to command injection. An attacker can craft a prompt that once accessed by the MCP client will run arbitrary commands on the host system.

CVSS v3: 9.6
EG Score: 9.6(medium)
EPSS: 77.6%
KEV: Not listed

Published

May 28, 2025

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated May 21, 2026

No patch confirmed yet.

generic

Merge pull request #11 from alexei-led/fix/security-command-exec · alexei-led/aws-mcp-server@94d20ae · GitHub

https://github.com/alexei-led/aws-mcp-server/commit/94d20ae1798a43ac7e3a28e71900d774e5159c8a

generic

aws-mcp-server/src/aws_mcp_server/cli_executor.py at 94d20ae1798a43ac7e3a28e71900d774e5159c8a · alexei-led/aws-mcp-server · GitHub

https://github.com/alexei-led/aws-mcp-server/blob/94d20ae1798a43ac7e3a28e71900d774e5159c8a/src/aws_mcp_server/cli_executor.py#L92

Weakness Classification(1)

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

CWE-78OS Command Injection

Data Freshness Timeline

(refreshed 15× in last 7d / 20× 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.

2026-06-08 14:16 UTCEPSS rescore
2026-06-08 14:16 UTCEPSS rescore
2026-06-07 15:24 UTCEPSS rescore
2026-06-07 15:24 UTCEPSS rescore
2026-06-06 13:47 UTCEPSS rescore
2026-06-06 13:47 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 06:10 UTCEPSS rescore
2026-06-05 06:10 UTCEPSS rescore
2026-06-04 13:12 UTCEPSS rescore
2026-06-04 13:12 UTCEPSS rescore
2026-06-03 06:10 UTCOSV refresh
2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-05-31 22:30 UTCEPSS rescore
2026-05-31 22:30 UTCEPSS rescore
2026-05-31 00:16 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-5277?

CVE-2025-5277 is a critical vulnerability published on May 28, 2025. aws-mcp-server MCP server is vulnerable to command injection. An attacker can craft a prompt that once accessed by the MCP client will run arbitrary commands on the host system.

When was CVE-2025-5277 disclosed?

CVE-2025-5277 was first published in the National Vulnerability Database on May 28, 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-2025-5277 actively exploited?

CVE-2025-5277 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 77.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-5277?

CVE-2025-5277 has a CVSS v3 base score of 9.6 (NVD).

How do I remediate CVE-2025-5277?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-5277, 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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CVE-2025-5277

📅 Published

🔄 Last Modified

📋 Advisory Details (2)