CVE-2022-22739

Malicious websites could have tricked users into accepting launching a program to handle an external URL protocol. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Affected

Mozilla · Firefox ESR · Firefox · Thunderbird

CVSS v3.1 NVD

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

EPSS

0.69% chance of exploitation in the next 30 days, 52nd percentile

Published

2022-12-22

Updated

2025-04-16

Proof-of-concept exploits (1)

• https://bugzilla.mozilla.org/show_bug.cgi?id=1744158

Security advisories

• https://www.mozilla.org/security/advisories/mfsa2022-01
• https://www.mozilla.org/security/advisories/mfsa2022-02
• https://www.mozilla.org/security/advisories/mfsa2022-03

References

• CVE Record
• NVD entry