CVE-2026-37532

AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library

High · published May 1, 2026

CVSS v3.1
7.1
EPSS
0%
Percentile
21.3
In the wild
Unconfirmed
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.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AC:L/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N
CVSS v4.0
Not supplied
EPSS
0.00298 · 21.3th percentile
Published
2026-05-01T00:00Z
EPSS history
Timeline
  • 01 MAY 00:00Z
    AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library
    cvelistv5