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TI-2023-03759 Aliases CVE-2023-4052GHSA-gjqm-928w-fr7f

Link following in Mozilla Firefox

Priority LOW 30CWE-59Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00711 53rd percentileScored 2026-11-07
Fix Fixed Firefox (Mozilla): 116Firefox ESR (Mozilla): 115.1+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 116116Patch availableCNA
MozillaFirefox ESRbefore 115.1115.1Patch availableCNA
MozillaThunderbirdbefore 115.1115.1Patch availableCNA
  • Firefox VendorMozilla Affected before 116 Fixed in 116 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 115.1 Fixed in 115.1 Patch available CNA
  • Thunderbird VendorMozilla Affected before 115.1 Fixed in 115.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 116.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 115.1VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 116.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 115.1 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 116
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 115.1
  • Fix · CNA Thunderbird (Mozilla) Fixed in 115.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 116

    14 records Highest priority Priority MEDIUM 8 MEDIUM, 6 LOW

    Other records, highest priority first

    • TI-2023-03757 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 53
    • TI-2023-03764 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
    • TI-2023-03763 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
    Show all 14 records →
  • Release ·

    Mozilla Firefox ESR 115.1

    11 records Highest priority Priority MEDIUM 6 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2023-03757 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 53
    • TI-2023-03764 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
    • TI-2023-03763 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
    Show all 11 records →
Show 1 more group
  • Release ·

    Mozilla Thunderbird 115.1

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2023-03764 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
    • TI-2023-03761 When opening appref-ms files, Firefox did not warn the user that these files may contain…Priority LOW 24
    Show all 3 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-4052
  2. 2026-10-03 Alias added: GHSA-gjqm-928w-fr7f

References

Advisory 2

Other 2

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences