CVE Catalog

CVE-2026-22561

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.18%

7th percentile - higher than 7% of all known CVEs

Summary

The Anthropic Claude installer for Windows (Claude Setup.exe) prior to version 1.1.3363 is vulnerable to DLL hijacking due to uncontrolled search path, allowing local privilege escalation.

Risk Assessment

An attacker with local access can place a malicious DLL next to the installer and achieve code execution with elevated privileges after UAC elevation.

Recommendation

Update Anthropic Claude to version 1.1.3363 or later.

Related vulnerabilities

Original NVD description (English source)

Uncontrolled search path elements in Anthropic Claude for Windows installer (Claude Setup.exe) versions prior to 1.1.3363 allow local privilege escalation via DLL search-order hijacking. The installer loads DLLs (e.g., profapi.dll) from its own directory after UAC elevation, enabling arbitrary code execution if a malicious DLL is planted alongside the installer.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS