CVE-2026-37535 Information disclosure in n/a
An out-of-bounds read in the ISO-TP library allows attackers to disclose sensitive memory or cause denial of service via malicious CAN frames.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-37535?
CVE-2026-37535 is a high-severity vulnerability in n/a, published on 1 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Weakness: CWE-125
Which versions are affected by CVE-2026-37535?
How do I fix CVE-2026-37535?
No fix has been published for CVE-2026-37535 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-37535 being exploited?
There is no known exploitation of CVE-2026-37535 in the wild and no public exploit code.
Sources
Also known as GHSA-v288-v38p-24mh.