CVE-2022-45418

Name: CVE-2022-45418
Creator: NVD / NIST
Published: 2022-12-22T20:15:44.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.73%

Last modified Jun 17, 2026

CVE-2022-45418 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. If a custom mouse cursor is specified in CSS, under certain circumstances the cursor could have been drawn over the browser UI, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

If a custom mouse cursor is specified in CSS, under certain circumstances the cursor could have been drawn over the browser UI, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.73%

49.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 107.0
Mozilla	Firefox Esr	< 102.5
Mozilla	Thunderbird	< 102.5

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1795815Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-47/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-48/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-49/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1795815Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-47/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-48/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-49/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1795815Issue Tracking, Permissions Required, Vendor Advisory

Timeline

Published: Dec 22, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-45418?

How severe is CVE-2022-45418?

CVE-2022-45418 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2022-45418?

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-2022-45418?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST