FI
Browser
Firefox
by Mozilla · last CVE Oct 6, 2026
On CISA KEVExploited in the wildRansomware-linked
3,445
CVEs
15
On KEV
10.0
Max CVSS
77
New 30D
Severity mix
Critical 489High 10Medium 1Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2019-11708
In wildKEV
10.0
56%
Jul 23
Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability
Affected: before 67.0.4
CVE-2024-9680
RansomwareIn wildKEV
9.8
23%
Oct 9
Mozilla Firefox Use-After-Free Vulnerability
Affected: before 131.0.2
CVE-2010-3765
In wildKEV
9.8
83%
Oct 27
Mozilla Multiple Products Remote Code Execution Vulnerability
Affected: 3.5; 3.5.1; 3.5.2; 3.5.3; 3.5.4; 3.5.5; +19 more
CVE-2022-26486
In wildKEV
9.6
2%
Dec 22
Mozilla Firefox Use-After-Free Vulnerability
Affected: before 97.0.2
Showing 4
The 500 most important CVEs for this product (exploited first, then by severity)