PatchTheCVECVE-2026-37532: AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library
CVE-2026-37532 is a high-severity flaw (CVSS 7.1) affecting automotive grade linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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
Why this priority
- High severity
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.1 (High) |
| Attack vector | Adjacent network |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 86%) |
| CISA exploited list | No |
| Weakness | CWE-126 |
| Published | 2026-05-01 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-37532?
automotive grade linux: upgrade to newer than 17.1.12. Exact commands for each OS are on this page.
Is CVE-2026-37532 being exploited?
CVE-2026-37532 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-37532 affect?
CVE-2026-37532 affects automotive grade linux. Severity is high (CVSS 7.1). 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, y
How urgent is CVE-2026-37532?
Priority 33/100. High severity; On your watchlist
Related CVEs
- CVE-2026-37531 CRITICAL 9.8 UPGRADE AGL app-framework-main thru 17.1.12 contains a Zip Slip path traversal vulnerability (CWE-22) combined with a
- CVE-2026-37530 HIGH 7.5 UPGRADE AGL agl-service-can-low-level thru 17.1.12 contains a stack buffer overflow in the uds-c library
- CVE-2026-37526 HIGH 7.8 UPGRADE AGL app-framework-binder (afb-daemon) through v19.90.0 allows any local process to execute privileged supervis
- CVE-2026-37525 HIGH 7.8 UPGRADE AGL app-framework-binder (afb-daemon) through v19.90.0 contains a privilege escalation vulnerability in the su