CVE-2026-37554 Denial of service in n/a
Remote attackers can crash the V2X receiver by sending malformed GeoNetworking packets that trigger unhandled OpenSSL exceptions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-37554?
CVE-2026-37554 is a high-severity denial of service vulnerability in n/a, published on 1 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-248
Which versions are affected by CVE-2026-37554?
How do I fix CVE-2026-37554?
No fix has been published for CVE-2026-37554 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-37554 being exploited?
There is no known exploitation of CVE-2026-37554 in the wild and no public exploit code.
Sources
Also known as GHSA-877p-g3p3-329r.