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No exploitation reportedFix available

CVE-2022-33070

No exploitation reported by the sources we read.

  • Published2022-06-23

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2022-06-2317:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-33070?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-33070?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Fedoraproject fedora
BranchAffectedFixed in
36.x= 36no fix published
Protobuf-c project protobuf-c
BranchAffectedFixed in
1.4= 1.4.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • argyllUbuntu:26.10all versions · no fixed version listedand 5 other packages
  • argyllUbuntu:26.04:LTSall versions · no fixed version listedand 5 other packages
  • argyllUbuntu:25.10all versions · no fixed version listedand 5 other packages
  • argyllUbuntu:24.04:LTSall versions · no fixed version listedand 6 other packages
  • argyllUbuntu:22.04:LTSall versions · no fixed version listedand 6 other packages
  • argyllUbuntu:20.04:LTSall versions · no fixed version listedand 5 other packages
  • argyllUbuntu:18.04:LTSall versions · no fixed version listedand 5 other packages
  • argyllUbuntu:16.04:LTSall versions · no fixed version listedand 4 other packages

25 more package ranges on OSV.dev

Vendor advisories

  • CVE-2022-33070 Red Hat Product Security11 known affected

    protobuf-c: invalid arithmetic shift via the function parse_tag_and_wiretype may lead to DoS

    protobuf-c as a component of Red Hat Enterprise Linux 7 · protobuf-c-compiler as a component of Red Hat Enterprise Linux 7 · protobuf-c-devel as a component of Red Hat Enterprise Linux 7 · +8 more

Full record on NVD

Fix

  1. Workaround from the vendor Red Hat Product Security CVE-2022-33070 · 11 productsMitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
  2. No fix available, says the vendor Red Hat Product Security CVE-2022-33070 · 8 productsFix deferred
  3. No fix planned, says the vendor Red Hat Product Security CVE-2022-33070 · 3 productsOut of support scope

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2022-06-23
Last Modified
2026-10-08
NVD status
Modified
GitHub Advisory
GHSA-xcrq-6j7j-784j

Frequently asked questions

What is CVE-2022-33070?

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.

Is CVE-2022-33070 actively exploited?

Active exploitation of CVE-2022-33070 has not been confirmed. Its EPSS score was 1.1% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-33070?

CVE-2022-33070 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

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