Security Vulnerabilities
Use-after-free in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
CVSS Score
5.4
EPSS Score
0.0
Published
2026-02-24
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
9.8
EPSS Score
0.0
Published
2026-02-24
Use-after-free in the DOM: Window and Location component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
9.8
EPSS Score
0.0
Published
2026-02-24
Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
9.8
EPSS Score
0.001
Published
2026-02-24
Use-after-free in the Graphics: ImageLib component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
9.8
EPSS Score
0.0
Published
2026-02-24
Same-origin policy bypass in the Networking: JAR component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
9.8
EPSS Score
0.0
Published
2026-02-24
Mitigation bypass in the Networking: Cache component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
9.8
EPSS Score
0.001
Published
2026-02-24
Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. 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 < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
9.8
EPSS Score
0.001
Published
2026-02-24
Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. 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 < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
9.8
EPSS Score
0.001
Published
2026-02-24
Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android. This vulnerability affects Firefox < 148.
CVSS Score
7.5
EPSS Score
0.0
Published
2026-02-24