Vulnerability · Published May 28, 2025 · Assigned by snyk
CVE-2025-5277
Critical 9.6
In plain English
A critical-severity OS command injection in aws-mcp-server from alexei-led. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).
Severity (CVSS 3.1)9.6Critical
Exploit odds (30 days)1.3%top 30.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| alexei-led | aws-mcp-server | 0 – before 1.3.0 |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H