Medium severity · published Dec 22, 2022
CVE-2022-22739
Malicious websites could have tricked users into accepting launching a program to handle an external URL protocol
6.5
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 96.0 · source: NVD
FE
Firefox Esr · Mozilla
before 91.5 · source: NVD
TH
Thunderbird · Mozilla
before 91.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-22739
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-22739
Exploit
https://bugzilla.mozilla.org/show_bug.cgi?id=1744158
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-01/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-02/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-03/
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