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CVE-2026-37554

7.5 · HIGH

An issue was discovered in Vanetza V2X v26.02 allowing remote unauthorized attackers to cause a denial of service.

Published May 1, 2026CWE-248EPSS 0.63%

Overview

CVE-2026-37554 is a high-severity vulnerability. It was published on May 1, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgist.github.com/sgInnora/45128ae15d52df7238680a8f2da8359fGitHubgithub.com/riebl/vanetzaGitHubgithub.com/riebl/vanetza/blob/master/vanetza/geonet/router.cppGitHubgithub.com/riebl/vanetza/blob/master/vanetza/security/openssl_wrapper.cppGitHubgithub.com/riebl/vanetza/security/advisories/GHSA-44qj-vh8c-5354

How CyberStrike helps

Frequently asked questions

What is CVE-2026-37554?

CVE-2026-37554 is a high-severity vulnerability. It was published on May 1, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-37554?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-37554?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-37554?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-37554 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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