{"apiVersion":"1.0","identifier":"CVE-2026-73523","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.","publishedAt":"2026-08-17T18:18:14","lastModifiedAt":"2026-08-17T19:16:40","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73523","cvssScore":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","epssProbability":0.00324,"riskScore":0.77,"affectedProduct":"Open1722","affectedVersions":"<=0.9.2","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73523","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73523","en":"https://www.redsauce.net/en/cves/CVE-2026-73523","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73523","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73523","de":"https://www.redsauce.net/de/cves/CVE-2026-73523","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73523","el":"https://www.redsauce.net/el/cves/CVE-2026-73523"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73523"}}