Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2022-33070
n/a n/a — 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.
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L N R U N N H 5.5 .0112 65.5 —
AFFECTED
Product Versions Fixed
n/a n/a – —
TIMELINE
Jun 13 Reserved by mitre
Jun 22 Published (CNA: mitre)
Oct 8 ENRICHED — CVE-2022-33070. Received CVSS 5.5 and CPE data from NVD.
Oct 8 EXPLOIT PUBLISHED — CVE-2022-33070. Public exploit reference added.
Description
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.
Lifecycle
Complete event history — 4 events, chronological
| Date | Event | Detail |
|---|
| June 13, 2022 | Reserved | Reserved by mitre |
| June 22, 2022 | Published | Published (CNA: mitre) |
| October 8, 2026 | ENRICHED | ENRICHED — CVE-2022-33070. Received CVSS 5.5 and CPE data from NVD. |
| October 8, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2022-33070. Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| n/a | n/a | — | n/a | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-33070 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
