CVE-2022-33070Protobuf-c v1.4.0 was discovered to contain an invalid arithmetic shift via the function parse_tag_and_wiretype in protobuf-c/protobuf-c.c.
Updated under an hour ago ()
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It affects protobuf-c_project protobuf-c and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Protobuf-c v1.4.0 was discovered to contain an invalid arithmetic shift via the function parse_tag_and_wiretype in protobuf-c/protobuf-c.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via unspecified vectors.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Modified
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
protobuf-c_project protobuf-c protobuf-c_project:protobuf-c | 1.4.0 | NVD |
fedoraproject fedora fedoraproject:fedora | 36 | NVD |
References
- https://github.com/protobuf-c/protobuf-c/issues/506x-refsource-misc
- https://github.com/protobuf-c/protobuf-c/pull/508x-refsource-misc
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFN2GHUEGTSHRD7J5PKQ5DRSJSEQ2IKN/vendor-advisory, x-refsource-fedora
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.