Ad

CVE-2025-64755

CRITICAL CVSS 3.1: 9.8 EPSS 0.12%
Updated Dec 04, 2025
Anthropic
Parameter Value
CVSS 9.8 (CRITICAL)
Affected Versions before 2.0.31
Fixed In 2.0.31
Type CWE-78 (OS Command Injection)
Vendor Anthropic
Public PoC No

Claude Code is an agentic coding tool. Prior to version 2.0.31, due to an error in sed command parsing, it was possible to bypass the Claude Code read-only validation and write to arbitrary files on the host system. This issue has been patched in version 2.0.31.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Anthropic Claude_Code
cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:*
2.0.31