Security Vulnerabilities
Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
10.0
EPSS Score
0.001
Published
2026-02-24
Privilege escalation in the Messaging System 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
Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
10.0
EPSS Score
0.001
Published
2026-02-24
Incorrect boundary conditions 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
0.001
Published
2026-02-24
Privilege escalation in the Netmonitor 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
Integer overflow in the Libraries component in NSS. 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
Privilege escalation in the Netmonitor 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
Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVSS Score
7.5
EPSS Score
0.0
Published
2026-02-24
Mitigation bypass in the DOM: Security 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
Invalid pointer 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