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No exploitation reported

CVE-2022-20203

No exploitation reported by the sources we read.

  • Published2022-06-15
  • WeaknessCWE-787

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

In multiple locations of the nanopb library, there is a possible way to corrupt memory when decoding untrusted protobuf files. This could lead to local escalation of privilege,with no additional execution privileges needed. User interaction is not needed for exploitation.

Timeline

dates in UTC
  1. 2022-06-1522:15CVE publishedNVD

Versions per branch

NVD
Google android
BranchAffectedFixed in
12.1= 12.1no 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

  • nanopbUbuntu:Pro:20.04:LTSall versions · no fixed version listed
  • nanopbUbuntu:26.10all versions · no fixed version listed
  • nanopbUbuntu:26.04:LTSall versions · no fixed version listed
  • nanopbUbuntu:25.10all versions · no fixed version listed
  • nanopbUbuntu:24.04:LTSall versions · no fixed version listed
  • nanopbUbuntu:22.04:LTSall versions · no fixed version listed

Full record on NVD

Fix

Advisories and patches

Detection

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

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2022-06-15
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-8jvx-gwwj-j77h

Frequently asked questions

What is CVE-2022-20203?

In multiple locations of the nanopb library, there is a possible way to corrupt memory when decoding untrusted protobuf files. This could lead to local escalation of privilege,with no additional execution privileges needed. User interaction is not needed for exploitation.

Is CVE-2022-20203 actively exploited?

Active exploitation of CVE-2022-20203 has not been confirmed. Its EPSS score was 0.1% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-20203?

CVE-2022-20203 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record