CVE-2026-43988 (GCVE-0-2026-43988)

Vulnerability from cvelistv5 – Published: 2026-05-26 21:17 – Updated: 2026-05-27 18:36
VLAI
Title
Vanetza: Remote Denial of Service via Uncaught Exception in ASN.1/OER Parsing
Summary
Vanetza is an open-source implementation of the ETSI C-ITS protocol suite. In 26.02 and earlier, a denial-of-service vulnerability was identified in the ASN.1/OER parsing pipeline of Vanetza. When processing malformed network packets containing corrupted ASN.1/OER structures (e.g., invalid length fields or malformed certificate encoding), the ASN.1 wrapper (asn1c_wrapper.cpp) raises a std::runtime_error. This exception is not caught at the parsing boundary and propagates to std::terminate, resulting in process termination. This vulnerability is fixed with commit 62dfe58a8342512b6e1947d75821402ada524f1a.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 13:03 UTC
CWE
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
riebl vanetza Affected: < 62dfe58a8342512b6e1947d75821402ada524f1a
Affected: <= 26.02
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