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.
History

Fri, 01 May 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 01 May 2026 17:00:00 +0000

Type Values Removed Values Added
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.
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AC:L/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-01T19:45:11.301Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-37535

cve-icon Vulnrichment

Updated: 2026-05-01T19:32:44.346Z

cve-icon NVD

Status : Received

Published: 2026-05-01T17:16:23.210

Modified: 2026-05-01T20:16:23.150

Link: CVE-2026-37535

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.