CVE-2022-45407
HIGHCVSS 7.5/10EPSS 0.63%
Last modified
CVE-2022-45407 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. If an attacker loaded a font using <code>FontFace()</code> on a background worker, a use-after-free could have occurred, leading to a potentially exploitable crash. This vulnerability affects Firefox < 107.. EPSS estimates a 0.63% chance of exploitation in the next 30 days.
Description
If an attacker loaded a font using <code>FontFace()</code> on a background worker, a use-after-free could have occurred, leading to a potentially exploitable crash. This vulnerability affects Firefox < 107.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 107.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1793314Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-47/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1793314Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-47/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-45407?
If an attacker loaded a font using <code>FontFace()</code> on a background worker, a use-after-free could have occurred, leading to a potentially exploitable crash. This vulnerability affects Firefox < 107.
How severe is CVE-2022-45407?
CVE-2022-45407 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.
How do I fix CVE-2022-45407?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2022-45407?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST