CVE-2026-43988

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Source

https://cve.org/CVERecord?id=CVE-2026-43988

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43988.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-43988

Aliases

GHSA-j6cj-rp87-mfrx

Published

2026-05-26T21:17:23Z

Modified

2026-08-12T16:24:26Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

Vanetza: Remote Denial of Service via Uncaught Exception in ASN.1/OER Parsing

Details

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.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-248"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43988.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "fixed":  "62dfe58a8342512b6e1947d75821402ada524f1a"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/riebl/vanetza

Affected ranges

Type

GIT

Repo

https://github.com/riebl/vanetza

Events

Introduced

Fixed

62dfe58a8342512b6e1947d75821402ada524f1a

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "26.02"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v24.*

v24.10

v25.*

v25.06

v26.*

v26.02

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43988.json"

vanir_signatures

[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "120507183913642992934266718702661940086",
                "183338805295403297330024893950020628936",
                "77955727460362536017711021380369810000",
                "94297039552648898801132085787498314694",
                "21380716296705308477510179655215789524",
                "225063994239765396802749549561499763404",
                "112266516912872078834209402227453311736",
                "309245407206844181951266235836169414728",
                "299650765213192288583726772910521231973"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-43988-bd566552",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/riebl/vanetza/commit/62dfe58a8342512b6e1947d75821402ada524f1a",
        "target":  {
            "file":  "vanetza/security/v3/certificate.cpp"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "94071187413114370352983363581339720182",
            "length":  1607
        },
        "id":  "CVE-2026-43988-f33f0e00",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/riebl/vanetza/commit/62dfe58a8342512b6e1947d75821402ada524f1a",
        "target":  {
            "file":  "vanetza/security/v3/certificate.cpp",
            "function":  "canonicalize"
        }
    }
]

vanir_signatures_modified

"2026-08-12T16:24:26Z"