CVE-2026-73523 - COVESA Open1722 0.9.2 Stack Memory Disclosure via acf-can-listener.c Integer Truncation

CVE-2026-73523 - COVESA Open1722 0.9.2 Stack Memory Disclosure via acf-can-listener.c Integer Truncation

https://cvefeed.io/rssfeed/latest.atom / Mon, 08/17/2026 - 22:26
CVE ID :CVE-2026-73523
Published : Aug. 17, 2026, 6:18 p.m. | 1 hour, 12 minutes ago
Description :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.
Severity: 8.7 | HIGH
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