9.8

CVE-2025-64755: anthropic claude_code OS Command Injection

CVSS: 9.8v3.1CriticalAnalyzed
AliasesGHSA-7mv8-j34q-vp7q
Published 21-11-2025Last modified 24-11-2025
Open JSON

Vulnerability summary

CVE-2025-64755 is a critical (CVSS 9.8) OS Command Injection vulnerability in anthropic claude_code. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 45.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.55%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-11-2025
    PublishedVulnerability first disclosed.
  2. 24-11-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.55%

Chance of exploitation in the next 30 days

Percentile

45%

Versus all other CVEs

30-day change

0.00 pp

From 0.55% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.55%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

@anthropic-ai1 product
  • claude-code< 2.0.31
Anthropic1 product
Anthropics1 product

3 vendors · 3 products

References

3 links