COVESA Open1722 up to 0.9.2 AVTP to CAN Conversion avtp_to_can stack-based overflow

Summaryinfo

A vulnerability, which was classified as critical, has been found in COVESA Open1722 up to 0.9.2. This affects the function avtp_to_can of the component AVTP to CAN Conversion. Performing a manipulation results in stack-based overflow. This vulnerability is identified as CVE-2026-73522. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in COVESA Open1722 up to 0.9.2. It has been classified as critical. This affects the function avtp_to_can of the component AVTP to CAN Conversion. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-73522 since 08/12/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/17/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• COVESA

Name

• Open1722

Version

• 0.9.0
• 0.9.1
• 0.9.2

Website

• Product: https://github.com/COVESA/Open1722/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion