5.5

CVE-2023-4104: mozilla mozilla vpn 2.16.1 Missing Authorization

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2023-4104
Published 11-09-2023Last modified 03-07-2025
Open JSON

Vulnerability summary

CVE-2023-4104 is a medium (CVSS 5.5) Missing Authorization vulnerability in mozilla mozilla vpn 2.16.1. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25.2% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.33%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference

Timeline

  1. 11-09-2023
    PublishedVulnerability first disclosed.
  2. 03-07-2025
    Last modifiedVulnerability information updated.

Description

An invalid Polkit Authentication check and missing authentication requirements for D-Bus methods allowed any local user to configure arbitrary VPN setups. *This bug only affects Mozilla VPN on Linux. Other operating systems are unaffected.* This vulnerability affects Mozilla VPN 2.16.1 < (Linux).

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

25%

Versus all other CVEs

30-day change

0.00 pp

From 0.33% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (bugzilla.mozilla.org)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (openwall.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Mozilla2 products
Ubuntu1 product
  • mozillavpnAll versions (No fix recorded)

2 vendors · 3 products

References

10 links