CVE-2026-73523

Published: Ago 17, 2026 Last Modified: Ago 17, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,7
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none

Description

AI Translation Available

COVESA Open1722 through 0.9.2 contains an integer truncation vulnerability in acf-can-listener.c that allows unauthenticated remote attackers to cause the CAN listener to transmit process stack memory onto the CAN bus by sending a rejected UDP datagram with a matching AVTP stream ID. The num_can_msgs variable declared as uint8_t truncates the -1 error return value from avtp_to_can() to 255, causing a write loop to iterate 255 times over a 15-slot stack array and leak approximately 18 KB of adjacent stack memory as roughly 240 CAN frames to any recipient on the CAN bus.

197

Numeric Truncation Error

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity
Potential Impacts:
Modify Memory
Applicable Platforms
Languages: C, C++, Java, C#
Likelihood of Exploit: Low
View CWE Details
https://github.com/COVESA/Open1722/issues/154
https://github.com/COVESA/Open1722/issues/154
https://www.vulncheck.com/advisories/covesa-open1722-stack-…
https://www.vulncheck.com/advisories/covesa-open1722-stack-memory-disclosure-vi…