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TI-2026-51626 Aliases CVE-2026-73522GHSA-r2g8-gx6q-pvxr

COVESA Open1722 0.9.2 Stack Buffer Overflow via avtp_to_can() in acf-can-listener

Priority MEDIUM 50CWE-121Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03954 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
COVESAOpen1722up to 0.9.2—No fix listedCNA
  • Open1722 VendorCOVESA Affected up to 0.9.2 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73522
  2. 2026-10-03 Alias added: GHSA-r2g8-gx6q-pvxr

References

Other 1

  • TI-2023-11420 An issue was discovered in the Connected Vehicle Systems Alliance (COVESA; formerly… CVSS 3.1HIGH 7.5
  • TI-2024-03712 COVESA vsomeip race condition CVSS 3.1MEDIUM 4.4
  • TI-2026-51627 COVESA Open1722 0.9.2 Stack Memory Disclosure via acf-can-listener.c Integer Truncation CVSS 4.0HIGH 8.7
  • TI-2023-18207 Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 was discovered to contain a… CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences