Vanetza V2X up to 26.02 openssl_wrapper.cpp Router::indicate denial of service

Summaryinfo

A vulnerability labeled as problematic has been found in Vanetza V2X up to 26.02. This vulnerability affects the function Router::indicate of the file openssl_wrapper.cpp. Executing a manipulation can lead to denial of service. This vulnerability appears as CVE-2026-37554. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in Vanetza V2X up to 26.02. This vulnerability affects the function Router::indicate of the file openssl_wrapper.cpp. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

An issue was discovered in Vanetza V2X v26.02 allowing remote unauthorized attackers to cause a denial of service. The vulnerability exists in the GeoNetworking packet processing pipeline where OpenSSL exceptions from ECC point validation (invalid compressed point, point not on curve) are not properly caught by the Router::indicate() call chain. The openssl_wrapper.cpp check() function (line 19) throws openssl::Exception when OpenSSL operations fail. The parser's catch block in parse_secured() should catch these, but the exception escapes through subsequent processing stages (indicate_common, indicate_extended). This causes std::terminate, crashing the V2X receiver.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-37554 since 04/06/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-26671). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Vanetza

Name

• V2X

Version

• 26.02

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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