Is CVE-2026-44983 actively exploited?

No active exploitation of CVE-2026-44983 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44983 be exploited remotely?

No. CVE-2026-44983 requires local access to exploit.

What is the CVSS score of CVE-2026-44983?

CVE-2026-44983 has a CVSS score of 7.3 (HIGH).

HOME VULNERABILITIESCVE-2026-44983

HIGH

CVE-2026-44983

CWE-122Published: May 26, 2026· Updated: Jun 1, 2026

7.3

CVSS v3.1

Official Description

smallbitvec is a growable bit-vector for Rust, optimized for size. From 1.0.1 to 2.6.0, an integer overflow in the internal capacity calculation of smallbitvec can lead to an undersized heap allocation, resulting in a heap buffer overflow through safe APIs only. This allows memory corruption without requiring unsafe code from the caller. This vulnerability is fixed in 2.6.1.

NVD Source

Technical Analysis

CVE-2026-44983 requires local access, meaning attackers must already have a foothold on the target system.

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 7.3.