CVE-2026-42485
HIGH EPSS 23.1%
Published May 1, 20262mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
Published May 1, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
Description
AGL agl-service-can-low-level 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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
23.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-121
References 2
- gerrit.automotivelinux.org https://gerrit.automotivelinux.org/gerrit/apps/agl-service-can-low-level
- gist.github.com https://gist.github.com/sgInnora/8526eedcfd826d05ef1fc45d8f405643
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.