Is CVE-2026-7574 actively exploited?

No active exploitation of CVE-2026-7574 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-7574 be exploited remotely?

No. CVE-2026-7574 requires local access to exploit.

What is the CVSS score of CVE-2026-7574?

CVE-2026-7574 has a CVSS score of 8.7 (HIGH).

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HIGH

CVE-2026-7574

CWE-353Published: June 24, 2026· Updated: Jun 25, 2026

8.7

CVSS v3.1

EPSS:0.10%probability of exploitation in 30 daysPercentile:1.2th

Official Description

Anthropic Claude Desktop Cowork VM image handling (confirmed across v1.1348.0 through v1.2278.0, including v1.1348.0, v1.1617.0, and v1.2278.0) validates only file presence and a version marker string before booting rootfs.img, but does not verify image content integrity at time-of-use. A local attacker with unprivileged code execution as the victim macOS user can modify the VM root filesystem image and have it trusted on subsequent Cowork VM boots, enabling persistent arbitrary code execution in the VM and access to host-mounted directories. The estimated CWE mapping is CWE-353 (Missing Support for Integrity Check).

NVD Source

Technical Analysis

CVE-2026-7574 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.7.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.