CVE-2023-6208
moderate-risk
Published 2023-11-21
When using X11, text selected by the page using the Selection API was erroneously copied into the primary selection, a temporary storage not unlike the clipboard. *This bug only affects Firefox on X11. Other systems are unaffected.* This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
Do I need to act?
-
0.46% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
NETWORK
/ LOW complexity
Affected Products (6)
References (14)
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1855345
Third Party Advisory
https://www.debian.org/security/2023/dsa-5561
Release Notes
https://www.mozilla.org/security/advisories/mfsa2023-49/
Release Notes
https://www.mozilla.org/security/advisories/mfsa2023-50/
Release Notes
https://www.mozilla.org/security/advisories/mfsa2023-52/
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1855345
Third Party Advisory
https://www.debian.org/security/2023/dsa-5561
Release Notes
https://www.mozilla.org/security/advisories/mfsa2023-49/
Release Notes
https://www.mozilla.org/security/advisories/mfsa2023-50/
Release Notes
https://www.mozilla.org/security/advisories/mfsa2023-52/
45
/ 100
moderate-risk
Severity
30/34 · Critical
Exploitability
2/34 · Minimal
Exposure
13/34 · Low