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TI-2022-07003 Aliases CVE-2022-22753GHSA-pr6h-wqwg-8wxx

Time-of-check time-of-use race condition in Mozilla Firefox

Priority LOW 34CWE-367Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

A Time-of-Check Time-of-Use bug existed in the Maintenance (Updater) Service that could be abused to grant Users write access to an arbitrary directory. This could have been used to escalate to SYSTEM access.<br>*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00651 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Firefox (Mozilla): 97Thunderbird (Mozilla): 91.6+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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 9797Patch availableCNA
MozillaThunderbirdbefore 91.691.6Patch availableCNA
MozillaFirefox ESRbefore 91.691.6Patch availableCNA
  • Firefox VendorMozilla Affected before 97 Fixed in 97 Patch available CNA
  • Thunderbird VendorMozilla Affected before 91.6 Fixed in 91.6 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 91.6 Fixed in 91.6 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 97.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 91.6VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 91.6VulnerableMozilla
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 97.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 91.6 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 91.6 Vulnerable ·Mozilla
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 97
  • Fix · CNA Thunderbird (Mozilla) Fixed in 91.6
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 91.6

Fixed in the same release

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

  • Release ·

    Mozilla Firefox 97

    12 records Highest priority Priority HIGH 4 HIGH, 5 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2022-07009 Protection mechanism failure in Mozilla FirefoxPriority HIGH 76
    • TI-2022-07011 Protection mechanism failure in Mozilla FirefoxPriority HIGH 73
    • TI-2022-07008 Cleartext transmission of sensitive information in Mozilla FirefoxPriority HIGH 73
    Show all 12 records →
  • Release ·

    Mozilla Firefox ESR, Thunderbird 91.6

    8 records Highest priority Priority HIGH 3 HIGH, 3 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2022-07009 Protection mechanism failure in Mozilla FirefoxPriority HIGH 76
    • TI-2022-07013 Race condition in Mozilla FirefoxPriority HIGH 73
    • TI-2022-07011 Protection mechanism failure in Mozilla FirefoxPriority HIGH 73
    Show all 8 records →

Vendor assessments

Red Hat

Red Hat rating: Important. 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-2022-22753
  2. 2026-10-03 Alias added: GHSA-pr6h-wqwg-8wxx
  3. 2026-10-23 EPSS moved to the 50th–90th percentile

References

Exploit 1

Advisory 3

  • 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