Vulnerability · Published May 1, 2026 · Assigned by mitre
CVE-2026-37535
High 7.1
In plain English
A high-severity out-of-bounds read in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).
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.
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AC:L/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N