CVE-2026-73522
Unauthenticated UDP stack buffer overflow in COVESA Open1722 enabling remote code execution.
Is CVE-2026-73522 being exploited?
Not confirmed. CVE-2026-73522 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 2.4% probability of exploitation in the next 30 days.
How severe is CVE-2026-73522?
CVE-2026-73522 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-73522?
Not known from our data. No patch reference has been recorded for CVE-2026-73522, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-73522 affect?
CVE-2026-73522 affects COVESA Open1722 <= 0.9.2, Devices implementing Open1722 (in-vehicle gateways, infotainment systems, ECUs). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-73522?
Block/inspect AVTP UDP streams, isolate affected devices, apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote code execution or denial of service via crafted UDP datagrams overflowing a fixed 15-slot stack array.
Immediate action required
- affected<= 0.9.2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.