Mozilla: >> Firefox >> 115.41.0 Security Vulnerabilities
Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
CVSS Score
9.1
EPSS Score
0.003
Published
2026-09-15
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Thunderbird 140.17, Firefox 156, Firefox ESR 153.3, Thunderbird 156, Thunderbird 153.3, Firefox ESR 115.42, and Firefox ESR 140.17.
CVSS Score
9.6
EPSS Score
0.003
Published
2026-09-15
Incorrect boundary conditions in the Networking: HTTP component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
CVSS Score
9.8
EPSS Score
0.006
Published
2026-09-15
Use-after-free in the Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
CVSS Score
8.8
EPSS Score
0.003
Published
2026-09-15
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 140.16 and Thunderbird 140.16.
CVSS Score
8.8
EPSS Score
0.003
Published
2026-09-15
Use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
CVSS Score
8.8
EPSS Score
0.003
Published
2026-09-15
Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
CVSS Score
5.3
EPSS Score
0.004
Published
2026-09-15
Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVSS Score
6.1
EPSS Score
0.003
Published
2026-09-01
Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVSS Score
9.8
EPSS Score
0.002
Published
2026-09-01
Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVSS Score
9.8
EPSS Score
0.003
Published
2026-09-01