CVE-2026-37532

What it is

AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library. In isotp_continue_receive (receive.c:87-89), the payload_length for a Single Frame is extracted from a 4-bit nibble in the CAN frame data, yielding values 0-15. However, a standard CAN frame is only 8 bytes, with payload starting at data[1] (7 bytes available). When payload_length exceeds the available data (e.g., nibble=15 but only 7 payload bytes exist), memcpy(message.payload, &data[1], payload_length) reads up to 8 bytes past the end of the data buffer.

At a glance

Exploitability

Can be exploited from the same network segment without logging in. High risk of service disruption.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-05-01 17:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 10:41 UTC Last updatedMost recent change to the record

Details

Published

2026-05-01 17:16 UTC

Last modified

2026-06-17 10:41 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-126

Record status

Analyzed

Affected

• Linuxfoundation Automotive Grade Linux ≤ 17.1.12

Attack profile CVSS 3.1 · 7.1

Attack vector

Adjacent network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High