CVE-2025-64671: GitHub Copilot for Jetbrains Remote Code Execution Vulnerability

Overview

Severity
High (CVSS 8.4)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category
Remote Code Execution
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Publicly Disclosed
Yes
Patch Tuesday
2025-Dec
Released
2025-12-09
EPSS Score
0.24% (percentile: 46.8%)

Description

Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized attacker to execute code locally.

FAQ

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution? The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability. How could an attacker exploit this vulnerability? Via a malicious Cross Prompt Inject in untrusted files or MCP servers, an attacker could execute additional commands by appending them to commands allowed in the user's terminal auto-approve setting.

Affected Products (1)

Other

  • GitHub Copilot Plugin for JetBrains IDEs

Security Updates (1)

Acknowledgments

<a href="https://x.com/ari_maccarita">Ari Marzuk</a> with https://maccarita.com/

Revision History

  • 2025-12-09: Information published.