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CVE-2025-66032

Anthropic Claude Code command injection

9.8 CRITICALEPSS 0.69%
  1. Published3 Dec 2025

Description

Claude Code is an agentic coding tool. Prior to 1.0.93, Due to errors in parsing shell commands related to $IFS and short CLI flags, it was possible to bypass the Claude Code read-only validation and trigger arbitrary code execution. Reliably exploiting this requires the ability to add untrusted content into a Claude Code context window. This vulnerability is fixed in 1.0.93.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Anthropic Claude Code< 1.0.93

Remediation

Fixed in
Anthropic Claude Code≥ 1.0.93

References

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Frequently asked

Is CVE-2025-66032 being actively exploited?

CVE-2025-66032 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.69%.

How severe is CVE-2025-66032?

CVE-2025-66032 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.69% probability of exploitation.

Which products are affected by CVE-2025-66032?

Affected products include Anthropic Claude Code.

How do I fix CVE-2025-66032?

Upgrade affected software to a fixed version, for example Anthropic Claude Code 1.0.93 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-66032 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.