PT-2026-36510 · Uds-C · Uds-C

Feng Ning · Published 2026-05-01 · Updated 2026-05-01 · CVE-2026-37536

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:N

Name of the Vulnerable Software and Affected Versions miaofng/uds-c versions prior to commit e506334e270d77b20c0bc259ac6c7d8c9b702b7a

Description A stack buffer overflow exists in the send diagnostic request() function. The issue occurs because a 6-byte stack buffer, defined by MAX DIAGNOSTIC PAYLOAD SIZE, receives a memcpy operation with payload length bytes at an offset of 1 plus pid length. Since MAX UDS REQUEST PAYLOAD LENGTH is 7, the total size can reach 10 bytes, exceeding the buffer by 4 bytes due to a lack of bounds checking on payload length before the memory copy.

Recommendations Update to a version that includes the fix implemented in commit e506334e270d77b20c0bc259ac6c7d8c9b702b7a.

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2026-37536

Affected Products

Uds-C

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-37536 · Security Note
• https://github.com/openxc/uds-c · Note
• https://twitter.com/CVEnew/status/2050269604115534094 · Twitter Post
• https://t.me/CVEtracker/52435 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2050338330210869735 · Twitter Post
• https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381 · Note
• https://github.com/miaofng/uds-c · Note