Mozilla: Security Vulnerabilities
Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
CVSS Score
8.8
EPSS Score
0.0
Published
2025-09-16
This vulnerability affects Firefox < 143 and Thunderbird < 143.
CVSS Score
8.1
EPSS Score
0.0
Published
2025-09-16
This vulnerability affects Firefox < 143.
CVSS Score
7.5
EPSS Score
0.0
Published
2025-09-16
This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
CVSS Score
6.2
EPSS Score
0.0
Published
2025-09-16
This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
CVSS Score
6.5
EPSS Score
0.0
Published
2025-09-16
This vulnerability affects Firefox < 143, Firefox ESR < 115.28, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
CVSS Score
8.8
EPSS Score
0.001
Published
2025-09-16
This vulnerability affects Firefox < 143 and Thunderbird < 143.
CVSS Score
6.5
EPSS Score
0.0
Published
2025-09-16
This vulnerability affects Firefox < 143 and Thunderbird < 143.
CVSS Score
5.4
EPSS Score
0.0
Published
2025-09-16
This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
CVSS Score
7.3
EPSS Score
0.001
Published
2025-09-16
This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
CVSS Score
6.5
EPSS Score
0.0
Published
2025-09-16
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