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CVE-2026-43988

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, resul
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:96f69ff04400353e8f80d0fb792d1ecafea0cf42a7ed88355914721addb64dd1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"vanetza","vendor":"riebl","versions":[{"status":"affected","version":"< 62dfe58a8342512b6e1947d75821402ada524f1a"},{"status":"affected","version":"<= 26.02"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d60a0718ceec0fb2e13d79a83b281363e30fe3fb0da16687d7fc76ba90ab3e1b · sha256:0c9204a11c42e6b1… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d60a0718ceec0fb2e13d79a83b281363e30fe3fb0da16687d7fc76ba90ab3e1b · sha256:0c9204a11c42e6b1… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-248","description":"CWE-248: Uncaught Exception","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d60a0718ceec0fb2e13d79a83b281363e30fe3fb0da16687d7fc76ba90ab3e1b · sha256:0c9204a11c42e6b1… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/riebl/vanetza/commit/62dfe58a8342512b6e1947d75821402ada524f1a","tags":["x_refsource_MISC"],"url":"https://github.com/riebl/vanetza/commit/62dfe58a8342512b6e1947d75821402ada524f1a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d60a0718ceec0fb2e13d79a83b281363e30fe3fb0da16687d7fc76ba90ab3e1b · sha256:0c9204a11c42e6b1… · /containers/cna/references/1
{"name":"https://github.com/riebl/vanetza/security/advisories/GHSA-j6cj-rp87-mfrx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/riebl/vanetza/security/advisories/GHSA-j6cj-rp87-mfrx"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d60a0718ceec0fb2e13d79a83b281363e30fe3fb0da16687d7fc76ba90ab3e1b · sha256:0c9204a11c42e6b1… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/riebl/vanetza/security/advisories/GHSA-j6cj-rp87-mfrx"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d60a0718ceec0fb2e13d79a83b281363e30fe3fb0da16687d7fc76ba90ab3e1b · sha256:0c9204a11c42e6b1… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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