Vulnerability Details : 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 <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.
Exploit prediction scoring system (EPSS) score for CVE-2022-26386
Probability of exploitation activity in the next 30 days: 0.11%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 43 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2022-26386
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
References for CVE-2022-26386
-
https://www.mozilla.org/security/advisories/mfsa2022-12/
Security Vulnerabilities fixed in Thunderbird 91.7 — MozillaVendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2022-11/
Security Vulnerabilities fixed in Firefox ESR 91.7 — MozillaVendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1752396
1752396 - (CVE-2022-26386) Temporary file creation moved from /tmp/mozilla_${USER}0 to /tmp. Potential security riskExploit;Issue Tracking;Vendor Advisory
Products affected by CVE-2022-26386
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*