CVE-2022-22753: mozilla firefox
Vulnerability summary
CVE-2022-22753 is a high (CVSS 7.1) vulnerability in mozilla firefox. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.1% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 9 · Related 9Timeline
- 22-12-2022PublishedVulnerability first disclosed.
- 16-04-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST7.1HighCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.63%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
0.00 pp
From 0.63% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.mozilla.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Mozilla3 products
- firefox≥ unspecified, < 97 | < 97.0
- firefox_esr≥ unspecified, < 91.6 | < 91.6
- thunderbird≥ unspecified, < 91.6 | < 91.6
1 vendor · 3 products
References
4 links- www.mozilla.org/security/advisories/mfsa2022-05/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-04/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-06/Vendor Advisory