Medium severity · published Dec 22, 2022
CVE-2022-26386
Previously Firefox for macOS and Linux would download temporary files to a user-specific directory in <code>/tmp</code>, but this behavior was changed to download them to…
6.5
CVSS
0.7%
EPSS
No
On KEV
Description
Previously Firefox for macOS and Linux would download temporary files to a user-specific directory in <code>/tmp</code>, but this behavior was changed to download them to <code>/tmp</code> where they could be affected by other local users. This behavior was reverted to the original, user-specific directory. <br>*This bug only affects Firefox for macOS and Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 91.7 and Thunderbird < 91.7.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
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
FE
Firefox Esr · Mozilla
before 91.7 · source: NVD
TH
Thunderbird · Mozilla
before 91.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-26386
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-26386
Exploit
https://bugzilla.mozilla.org/show_bug.cgi?id=1752396
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-11/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-12/
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