HIGHCVSS 7.5Vulnerability
CVE-2026-73522
COVESA Open1722 through 0.9.2 contains a stack buffer overflow vulnerability that allows unauthenticated remote attackers to write past the end of a fixed 15-slot stack array by sending a crafted UDP datagram containing more than 15 ACF-CAN messages. The avtp_to_can() function increments its write index without bounding it against the caller-supplied array size, and because the listener accepts datagrams from any sender matching a hardcoded unauthenticated stream ID transmitted in plaintext, attackers can corrupt adjacent stack memory to achieve arbitrary code execution or denial of service.
Properties
- severity
- HIGH
- cvss_severity
- HIGH
- cvss_score
- 7.5
- retrieved_at
- 2026-09-25T15:10:02+00:00
- score
- 7.5
- last_source
- NVD
- cve_id
- CVE-2026-73522
- cvss_vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- signal_observed_at
- 2026-09-25T15:10:02+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- published_at
- 2026-08-17T18:18:14.030
- last_modified
- 2026-09-24T20:06:30.133
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Stack-based Buffer Overflow
DESCRIBED_BY (1)
→[Source]NVD
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