CVE-2022-22753

Mozilla Firefox ESR and 4 others: Time-of-check Time-of-use (TOCTOU) Race Condition

CVE-2022-22753 is fixed in 3 products on 1 platform, first by Mozilla Firefox (en-US) 97.0, released February 8, 2022. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.1

No vendor severity

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0065

51st percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
Mozilla Firefox (en-US)	97.0	Mozilla Firefox (en-US) 97.0	Feb 8, 2022
Mozilla Firefox ESR (en-US)	102.0	Mozilla Firefox ESR (en-US) 102.0	Jun 23, 2022
Mozilla Thunderbird (en-US)	91.6.0	Mozilla Thunderbird (en-US) 91.6.0	Feb 8, 2022

Details

Published
December 22, 2022
Weakness
CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2022-22753

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