Is CVE-2026-42199 actively exploited?

No active exploitation of CVE-2026-42199 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42199 be exploited remotely?

No. CVE-2026-42199 requires local access to exploit.

What is the CVSS score of CVE-2026-42199?

CVE-2026-42199 has a CVSS score of 6.2 (MEDIUM).

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MEDIUM

CVE-2026-42199

CWE-190Published: May 8, 2026· Updated: May 13, 2026

6.2

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.7th

Official Description

Grid is a data structure grid for rust. From version 0.17.0 to before version 1.0.1, an integer overflow in Grid::expand_rows() can corrupt the relationship between the grid’s logical dimensions and its backing storage. After the internal invariant is broken, the safe API get() may invoke get_unchecked() with an invalid index, resulting in Undefined Behavior. This issue has been patched in version 1.0.1.

NVD Source

Technical Analysis

CVE-2026-42199 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 6.2.