CVE-2026-37535
High
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.
SeverityHigh
CVSS7.1
Exploit probability—
ProductOpenxc Isotp-c
PublishedMay 1, 2026
First seenMay 1, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openxc isotp-c | v ≤ commit 5a5d19245f65189202719321facd49ce6f5d46ac | — |
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