CVE-2022-22756

Name: CVE-2022-22756
Creator: NVD / NIST
Published: 2022-12-22T20:15:18.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.93%

Last modified Jun 17, 2026

CVE-2022-22756 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. If a user was convinced to drag and drop an image to their desktop or other folder, the resulting object could have been changed into an executable script which would have run arbitrary code after the user clicked on it. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

If a user was convinced to drag and drop an image to their desktop or other folder, the resulting object could have been changed into an executable script which would have run arbitrary code after the user clicked on it. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.93%

55.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 97.0
Mozilla	Firefox Esr	< 91.6
Mozilla	Thunderbird	< 91.6

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1317873Exploit, Issue Tracking, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-04/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-05/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-06/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1317873Exploit, Issue Tracking, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-04/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-05/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-06/Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2022-22756?

How severe is CVE-2022-22756?

CVE-2022-22756 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.

How do I fix CVE-2022-22756?

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-2022-22756?

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

Scan your code now

Source: NVD / NIST