CVE-2026-37535

CVSS 7.1 HIGHEPSS 0.2%CWE-125

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

01 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AC:L/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N

Affected products

n/a · n/a

References

https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381 https://github.com/openxc/isotp-c https://github.com/openxc/isotp-c/blob/master/src/isotp/receive.c