Vulnerability in Linuxfoundation Automotive Grade Linux
CVE-2026-37532
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (20.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- gerrit.automotivelinux.org/gerrit/apps/agl-service-can-low-level (Broken Link)
- gist.github.com/sgInnora/8526eedcfd826d05ef1fc45d8f405643 (Third Party Advisory)
Frequently asked questions
- What is CVE-2026-37532?
- CVE-2026-37532 is a high-severity vulnerability in Linuxfoundation Automotive Grade Linux, classified under Buffer Over-read. CVSS score: 7.1/10. Published 2026-05-01.
- How severe is CVE-2026-37532?
- High severity. CVSS v3 base score is 7.1 out of 10.