4.3

CVE-2023-6871: mozilla firefox

CVSS: 4.3v3.1MediumModified
AliasesUBUNTU-CVE-2023-6871CGA-26xq-fh52-2p33CGA-h8wr-mwh6-c65j
Published 19-12-2023Last modified 02-08-2024
Open JSON

Vulnerability summary

CVE-2023-6871 is a medium (CVSS 4.3) vulnerability in mozilla firefox. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 41% 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
0.49%
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 4
OPENSUSE-SU-2024:13531-1OPENSUSE-SU-2024:14572-1USN-6562-1CGA-8375-R356-7X85

Timeline

  1. 19-12-2023
    PublishedVulnerability first disclosed.
  2. 02-08-2024
    Last modifiedVulnerability information updated.

Description

Under certain conditions, Firefox did not display a warning when a user attempted to navigate to a new protocol handler. This vulnerability affects Firefox < 121.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

0.00 pp

From 0.49% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.49%

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

No weakness data has been published for this record.

Affected systems

Ubuntu7 products
  • firefox< 121.0+build1-0ubuntu0.20.04.1
  • mozjs102All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Chainguard1 product
  • firefox-esr< 121.0-r0
Mozilla1 product
  • firefox≥ unspecified, < 121 | < 121.0

3 vendors · 9 products

References

7 links