Description
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.
Published: 2026-05-26
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Wed, 27 May 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 26 May 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Riebl
Riebl vanetza
Vendors & Products Riebl
Riebl vanetza

Tue, 26 May 2026 21:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Vanetza: Remote Denial of Service via Uncaught Exception in ASN.1/OER Parsing
Weaknesses CWE-248
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-27T18:36:29.364Z

Reserved: 2026-05-04T20:24:31.916Z

Link: CVE-2026-43988

cve-icon Vulnrichment

Updated: 2026-05-27T13:03:10.483Z

cve-icon NVD

Status : Deferred

Published: 2026-05-26T22:16:42.303

Modified: 2026-06-17T10:50:10.113

Link: CVE-2026-43988

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-26T22:30:18Z

Weaknesses