Is CVE-2026-25725 in the CISA KEV catalog?

No. CVE-2026-25725 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-25725?

CVE-2026-25725 has a CVSS v3 base score of 10.0 (CRITICAL).

What is the EPSS score for CVE-2026-25725?

CVE-2026-25725 has an EPSS score of 0.42% (34th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-25725?

Upgrade claude code to 2.1.2 or later.

CVE & CISA-KEV Catalog

CVE-2026-25725

CRITICAL

10.0

CVSS v3

NVD

Description

Claude Code is an agentic coding tool. Prior to version 2.1.2, Claude Code's bubblewrap sandboxing mechanism failed to properly protect the .claude/settings.json configuration file when it did not exist at startup. While the parent directory was mounted as writable and .claude/settings.local.json was explicitly protected with read-only constraints, settings.json was not protected if it was missing. This allowed malicious code running inside the sandbox to create this file and inject persistent hooks (such as SessionStart commands) that would execute with host privileges when Claude Code was restarted. This issue has been patched in version 2.1.2.

CWE-501 CWE-668

How to fix

Remediation Available

claude codeNVD

Affected:< 2.1.2Fixed in:2.1.2CVE-2026-25725derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

0.42%probability of exploitation in 30 days

34thpercentile

Low risk: more likely to be exploited than 34% of all known CVEs.

References

Third-Party Advisory1

github.com

Related Vulnerabilities

Other CWE-501 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-61884	High	7.5	98%	KEV + Ransom	-
CVE-2025-64496	High	7.3	7.9%	-	Fix
CVE-2024-3661	High	7.6	4.1%	-	Fix
CVE-2026-27893	High	8.8	1.4%	-	Fix
CVE-2024-49050	High	8.8	1.2%	-	Fix
CVE-2026-48746	Critical	9.1	1.0%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-09.