EUVD-2026-26671CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4DescriptionNVD
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.
AnalysisAI
Remote unauthenticated denial of service crashes Vanetza V2X v26.02 receivers via malformed GeoNetworking packets containing invalid ECC points. Uncaught OpenSSL exceptions from elliptic curve point validation (invalid compressed points, points not on curve) in the security layer escape through the Router::indicate() call chain, triggering std::terminate and process termination. …
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RemediationAI
Within 24 hours: Inventory all Vanetza V2X v26.02 deployments and network segments with exposed receivers; implement network-level filtering to restrict GeoNetworking traffic (UDP port 5555 standard) to trusted V2X nodes only. Within 7 days: Establish monitoring for abnormal V2X receiver crashes or restarts; document current availability metrics as baseline; contact Vanetza project maintainers for patch timeline and interim guidance. …
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