Is CVE-2026-37535 actively exploited?

No active exploitation of CVE-2026-37535 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-37535 be exploited remotely?

Partially. CVE-2026-37535 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-37535?

CVE-2026-37535 has a CVSS score of 7.1 (HIGH).

HOME VULNERABILITIESCVE-2026-37535

HIGH

CVE-2026-37535

CWE-125Published: May 1, 2026· Updated: May 7, 2026

7.1

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.7th

Official Description

openxc/isotp-c thru commit 5a5d19245f65189202719321facd49ce6f5d46ac (2021-08-09) contains an out-of-bounds read in the ISO-TP Single Frame receive handler, where the 4-bit payload length nibble is used directly as the memcpy size without validating it against the actual CAN data length. A malicious CAN frame with an oversized length nibble can cause memory reads beyond the buffer, allowing attackers to cause a denial of service, or gain sensitive information.

NVD Source

Technical Analysis

CVE-2026-37535 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

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 7.1.