Is CVE-2026-44004 actively exploited?

No active exploitation of CVE-2026-44004 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44004 be exploited remotely?

Yes. CVE-2026-44004 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-44004?

CVE-2026-44004 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-44004

HIGH

CVE-2026-44004

CWE-770Published: May 13, 2026· Updated: May 14, 2026

7.5

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.1th

Official Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, sandboxed code can call Buffer.alloc() with an arbitrary size to allocate memory directly on the host heap. Because Buffer.alloc is a synchronous C++ native call, vm2's timeout option cannot interrupt it. A single request can exhaust host memory and crash the process with a FATAL ERROR: Reached heap limit. This vulnerability is fixed in 3.11.0.

NVD Source

Technical Analysis

CVE-2026-44004 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.