CVE-2026-37530
AGL agl-service-can-low-level Stack Buffer Overflow Vulnerability
Description
AGL agl-service-can-low-level thru 17.1.12 contains a stack buffer overflow in the uds-c library. The send_diagnostic_request function in uds.c allocates a 6-byte stack buffer (MAX_DIAGNOSTIC_PAYLOAD_SIZE=6) but copies up to 7 bytes (MAX_UDS_REQUEST_PAYLOAD_LENGTH=7) via memcpy at an offset of 1+pid_length (2-3 bytes), resulting in 1-4 bytes of controlled stack overflow. The payload_length field (uint8_t) has no bounds check against the destination buffer. On 32-bit ARM automotive ECUs without stack canaries, this can lead to return address overwrite and RCE.
INFO
Published Date :
May 1, 2026, 5:16 p.m.
Last Modified :
May 20, 2026, 3:25 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Validate payload_length against buffer size.
- Implement bounds checking for memcpy.
- Apply vendor-supplied patches.
- Recompile affected code.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-37530.
| URL | Resource |
|---|---|
| https://gerrit.automotivelinux.org/gerrit/apps/agl-service-can-low-level | Broken Link |
| https://gist.github.com/sgInnora/8526eedcfd826d05ef1fc45d8f405643 | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-37530 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-37530
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-37530 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-37530 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 20, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linuxfoundation:automotive_grade_linux:*:*:*:*:*:*:*:* versions up to (including) 17.1.12 Added Reference Type MITRE: https://gerrit.automotivelinux.org/gerrit/apps/agl-service-can-low-level Types: Broken Link Added Reference Type MITRE: https://gist.github.com/sgInnora/8526eedcfd826d05ef1fc45d8f405643 Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 01, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-121 -
New CVE Received by [email protected]
May. 01, 2026
Action Type Old Value New Value Added Description AGL agl-service-can-low-level thru 17.1.12 contains a stack buffer overflow in the uds-c library. The send_diagnostic_request function in uds.c allocates a 6-byte stack buffer (MAX_DIAGNOSTIC_PAYLOAD_SIZE=6) but copies up to 7 bytes (MAX_UDS_REQUEST_PAYLOAD_LENGTH=7) via memcpy at an offset of 1+pid_length (2-3 bytes), resulting in 1-4 bytes of controlled stack overflow. The payload_length field (uint8_t) has no bounds check against the destination buffer. On 32-bit ARM automotive ECUs without stack canaries, this can lead to return address overwrite and RCE. Added Reference https://gerrit.automotivelinux.org/gerrit/apps/agl-service-can-low-level Added Reference https://gist.github.com/sgInnora/8526eedcfd826d05ef1fc45d8f405643