Is CVE-2026-34353 actively exploited?

No active exploitation of CVE-2026-34353 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34353 be exploited remotely?

No. CVE-2026-34353 requires local access to exploit.

What is the CVSS score of CVE-2026-34353?

CVE-2026-34353 has a CVSS score of 5.9 (MEDIUM).

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MEDIUM

CVE-2026-34353

CWE-190Published: March 27, 2026· Updated: Mar 30, 2026

5.9

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.9th

Official Description

In OCaml through 4.14.3, Bigarray.reshape allows an integer overflow, and resultant reading of arbitrary memory, when untrusted data is processed.

NVD Source

Technical Analysis

CVE-2026-34353 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 complete confidentiality breach (data exposure), with a CVSS base score of 5.9.

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.