7.5

CVE-2022-1941: debian debian_linux

CVSS: 7.5v3.1HighModified
AliasesGHSA-8gq9-2x98-w8hfPYSEC-2026-899RHSA-2025:7138
Published 22-09-2022Last modified 03-08-2024

Vulnerability summary

CVE-2022-1941 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 1.51% chance of exploitation in the next 30 days, higher than 74% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.51%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 5

Timeline

  1. 22-09-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A parsing vulnerability for the MessageSet type in the ProtocolBuffers versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 3.21.5 for protobuf-cpp, and versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 4.21.5 for protobuf-python can lead to out of memory failures. A specially crafted message with multiple key-value per elements creates parsing issues, and can lead to a Denial of Service against services receiving unsanitized input. We recommend upgrading to versions 3.18.3, 3.19.5, 3.20.2, 3.21.6 for protobuf-cpp and 3.18.3, 3.19.5, 3.20.2, 4.21.6 for protobuf-python. Versions for 3.16 and 3.17 are no longer updated.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

1.51%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

+0.01 pp

From 1.50% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.51%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat10 products
  • protobuf< 0:3.14.0-16.el9
  • protobuf-compiler< 0:3.14.0-16.el9
  • protobuf-compiler-debuginfo< 0:3.14.0-16.el9
  • protobuf-debuginfo< 0:3.14.0-16.el9
  • protobuf-debugsource< 0:3.14.0-16.el9
Debian2 products
Google2 products
  • protobuf-cpp< 3.18.3 | ≥ 3.19.0, < 3.19.5 | ≥ 3.20.0, < 3.20.2 | ≥ 3.21.0, < 3.21.6
  • protobuf-python< 3.18.3 | ≥ 3.19.0, < 3.19.5 | ≥ 3.20.0, < 3.20.2 | ≥ 4.0.0, < 4.21.6
Google llc2 products
  • protobuf-cpp≥ unspecified, ≤ 3.16.1 | ≥ unspecified, ≤ 3.17.3 | ≥ unspecified, ≤ 3.18.2 | ≥ unspecified, ≤ 3.19.4 | ≥ unspecified, ≤ 3.20.1 | ≥ unspecified, ≤ 3.21.5
  • protobuf-python≥ unspecified, ≤ 3.16.1 | ≥ unspecified, ≤ 3.17.3 | ≥ unspecified, ≤ 3.18.2 | ≥ unspecified, ≤ 3.19.4 | ≥ unspecified, ≤ 3.20.1 | ≥ unspecified, ≤ 4.21.5
Fedoraproject1 product
PyPI1 product
  • protobuf< 3.18.3 | ≥ 3.19.0, < 3.19.5 | ≥ 3.20.0, < 3.20.2 | ≥ 4.0.0, < 4.21.6
Ubuntu1 product
  • protobufAll versions (No fix recorded) | < 2.6.1-1.3ubuntu0.1~esm2 | < 3.0.0-9.1ubuntu1.1 | < 3.6.1.3-2ubuntu5.2 | < 3.12.4-1ubuntu7.22.04.1

7 vendors · 19 products

References

29 links
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