4.3

CVE-2020-15668: mozilla firefox Improper Locking

CVSS: 4.3v3.1MediumModified
AliasesUBUNTU-CVE-2020-15668
Published 01-10-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-15668 is a medium (CVSS 4.3) Improper Locking vulnerability in mozilla firefox. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 44.1% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.54%
0%100%
Low · 0.00 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
OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:14572-1USN-4474-1

Timeline

  1. 01-10-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A lock was missing when accessing a data structure and importing certificate information into the trust database. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.54%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

0.00 pp

From 0.53% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.54%

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

Ubuntu4 products
  • firefox< 80.0+build2-0ubuntu0.16.04.1 | < 80.0+build2-0ubuntu0.18.04.1 | < 80.0+build2-0ubuntu0.20.04.1
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Mozilla3 products

2 vendors · 7 products

References

7 links