7.1

CVE-2022-42930: mozilla firefox Race Condition

CVSS: 7.1v3.1HighModified
AliasesUBUNTU-CVE-2022-42930
Published 22-12-2022Last modified 15-04-2025

Vulnerability summary

CVE-2022-42930 is a high (CVSS 7.1) Race Condition vulnerability in mozilla firefox. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 32.9% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.40%
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 3 · Related 3

Timeline

  1. 22-12-2022
    PublishedVulnerability first disclosed.
  2. 15-04-2025
    Last modifiedVulnerability information updated.

Description

If two Workers were simultaneously initializing their CacheStorage, a data race could have occurred in the `ThirdPartyUtil` component. This vulnerability affects Firefox < 106.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

33%

Versus all other CVEs

30-day change

+0.01 pp

From 0.39% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.40%

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

Ubuntu2 products
  • firefox< 106.0.2+build1-0ubuntu0.18.04.1 | < 106.0.2+build1-0ubuntu0.20.04.1
  • thunderbird< 1:102.4.2+build2-0ubuntu0.20.04.1 | < 1:102.4.2+build2-0ubuntu0.22.04.1
Mozilla1 product
  • firefox≥ unspecified, < 106 | < 106.0

2 vendors · 3 products

References

6 links