CVE-2025-64340 describes a command injection vulnerability in FastMCP versions prior to 3.2.0, occurring on Windows when installing `claude-code` or `gemini-cli` due to `cmd.exe` improperly interpreting shell metacharacters in server names. Rated Medium with a CVSS score of 6.7 (AV:L/AC:H/PR:L/UI:R), exploitation requires local access, low privileges, and user interaction, with high attack complexity, but could lead to high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code availability, or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.2.0CPE matchmatch criteria | cpe:2.3:a:jlowin:fastmcp:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.