CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-100778

Sandbox escape due to use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.003

EPSS Ranking 25.2%

CVSS Severity

CVSS v3 Score 9.6

References

Products affected by CVE-2026-100778

Mozilla » Firefox » Version: 115.0.1

cpe:2.3:a:mozilla:firefox:115.0.1
Mozilla » Firefox » Version: 115.0.2

cpe:2.3:a:mozilla:firefox:115.0.2
Mozilla » Firefox » Version: 115.0.3

cpe:2.3:a:mozilla:firefox:115.0.3
Mozilla » Firefox » Version: 115.1.0

cpe:2.3:a:mozilla:firefox:115.1.0
Mozilla » Firefox » Version: 115.10.0

cpe:2.3:a:mozilla:firefox:115.10.0
Mozilla » Firefox » Version: 115.11.0

cpe:2.3:a:mozilla:firefox:115.11.0
Mozilla » Firefox » Version: 115.12.0

cpe:2.3:a:mozilla:firefox:115.12.0
Mozilla » Firefox » Version: 115.13.0

cpe:2.3:a:mozilla:firefox:115.13.0
Mozilla » Firefox » Version: 115.14.0

cpe:2.3:a:mozilla:firefox:115.14.0
Mozilla » Firefox » Version: 115.15.0

cpe:2.3:a:mozilla:firefox:115.15.0
Mozilla » Firefox » Version: 115.16.0

cpe:2.3:a:mozilla:firefox:115.16.0
Mozilla » Firefox » Version: 115.16.1

cpe:2.3:a:mozilla:firefox:115.16.1
Mozilla » Firefox » Version: 115.17.0

cpe:2.3:a:mozilla:firefox:115.17.0
Mozilla » Firefox » Version: 115.18.0

cpe:2.3:a:mozilla:firefox:115.18.0
Mozilla » Firefox » Version: 115.19.0

cpe:2.3:a:mozilla:firefox:115.19.0
Mozilla » Firefox » Version: 115.2.0

cpe:2.3:a:mozilla:firefox:115.2.0
Mozilla » Firefox » Version: 115.2.1

cpe:2.3:a:mozilla:firefox:115.2.1
Mozilla » Firefox » Version: 115.20.0

cpe:2.3:a:mozilla:firefox:115.20.0
Mozilla » Firefox » Version: 115.21.0

cpe:2.3:a:mozilla:firefox:115.21.0
Mozilla » Firefox » Version: 115.21.1

cpe:2.3:a:mozilla:firefox:115.21.1
Mozilla » Firefox » Version: 115.22.0

cpe:2.3:a:mozilla:firefox:115.22.0
Mozilla » Firefox » Version: 115.23.0

cpe:2.3:a:mozilla:firefox:115.23.0
Mozilla » Firefox » Version: 115.23.1

cpe:2.3:a:mozilla:firefox:115.23.1
Mozilla » Firefox » Version: 115.24.0

cpe:2.3:a:mozilla:firefox:115.24.0
Mozilla » Firefox » Version: 115.25.0

cpe:2.3:a:mozilla:firefox:115.25.0
Mozilla » Firefox » Version: 115.26.0

cpe:2.3:a:mozilla:firefox:115.26.0
Mozilla » Firefox » Version: 115.28.0

cpe:2.3:a:mozilla:firefox:115.28.0
Mozilla » Firefox » Version: 115.29.0

cpe:2.3:a:mozilla:firefox:115.29.0
Mozilla » Firefox » Version: 115.3.0

cpe:2.3:a:mozilla:firefox:115.3.0
Mozilla » Firefox » Version: 115.3.1

cpe:2.3:a:mozilla:firefox:115.3.1
Mozilla » Firefox » Version: 115.30.0

cpe:2.3:a:mozilla:firefox:115.30.0
Mozilla » Firefox » Version: 115.31.0

cpe:2.3:a:mozilla:firefox:115.31.0
Mozilla » Firefox » Version: 115.32.0

cpe:2.3:a:mozilla:firefox:115.32.0
Mozilla » Firefox » Version: 115.32.1

cpe:2.3:a:mozilla:firefox:115.32.1
Mozilla » Firefox » Version: 115.33.0

cpe:2.3:a:mozilla:firefox:115.33.0
Mozilla » Firefox » Version: 115.34.0

cpe:2.3:a:mozilla:firefox:115.34.0
Mozilla » Firefox » Version: 115.34.1

cpe:2.3:a:mozilla:firefox:115.34.1
Mozilla » Firefox » Version: 115.35.0

cpe:2.3:a:mozilla:firefox:115.35.0
Mozilla » Firefox » Version: 115.35.1

cpe:2.3:a:mozilla:firefox:115.35.1
Mozilla » Firefox » Version: 115.35.2

cpe:2.3:a:mozilla:firefox:115.35.2
Mozilla » Firefox » Version: 115.36.0

cpe:2.3:a:mozilla:firefox:115.36.0
Mozilla » Firefox » Version: 115.37.0

cpe:2.3:a:mozilla:firefox:115.37.0
Mozilla » Firefox » Version: 115.38.0

cpe:2.3:a:mozilla:firefox:115.38.0
Mozilla » Firefox » Version: 115.39.0

cpe:2.3:a:mozilla:firefox:115.39.0
Mozilla » Firefox » Version: 115.4.0

cpe:2.3:a:mozilla:firefox:115.4.0
Mozilla » Firefox » Version: 115.4.1

cpe:2.3:a:mozilla:firefox:115.4.1
Mozilla » Firefox » Version: 115.5.0

cpe:2.3:a:mozilla:firefox:115.5.0
Mozilla » Firefox » Version: 115.6.0

cpe:2.3:a:mozilla:firefox:115.6.0
Mozilla » Firefox » Version: 115.7.0

cpe:2.3:a:mozilla:firefox:115.7.0
Mozilla » Firefox » Version: 115.8.0

cpe:2.3:a:mozilla:firefox:115.8.0
Mozilla » Firefox » Version: 115.9.0

cpe:2.3:a:mozilla:firefox:115.9.0
Mozilla » Firefox » Version: 115.9.1

cpe:2.3:a:mozilla:firefox:115.9.1
Mozilla » Firefox » Version: 140.0.0

cpe:2.3:a:mozilla:firefox:140.0.0
Mozilla » Firefox » Version: 140.0.1

cpe:2.3:a:mozilla:firefox:140.0.1
Mozilla » Firefox » Version: 140.0.2

cpe:2.3:a:mozilla:firefox:140.0.2
Mozilla » Firefox » Version: 140.0.4

cpe:2.3:a:mozilla:firefox:140.0.4
Mozilla » Firefox » Version: 140.1.0

cpe:2.3:a:mozilla:firefox:140.1.0
Mozilla » Firefox » Version: 140.10.0

cpe:2.3:a:mozilla:firefox:140.10.0
Mozilla » Firefox » Version: 140.10.1

cpe:2.3:a:mozilla:firefox:140.10.1
Mozilla » Firefox » Version: 140.10.2

cpe:2.3:a:mozilla:firefox:140.10.2
Mozilla » Firefox » Version: 140.11.0

cpe:2.3:a:mozilla:firefox:140.11.0
Mozilla » Firefox » Version: 140.12.0

cpe:2.3:a:mozilla:firefox:140.12.0
Mozilla » Firefox » Version: 140.13.0

cpe:2.3:a:mozilla:firefox:140.13.0
Mozilla » Firefox » Version: 140.14.0

cpe:2.3:a:mozilla:firefox:140.14.0
Mozilla » Firefox » Version: 140.15.0

cpe:2.3:a:mozilla:firefox:140.15.0
Mozilla » Firefox » Version: 140.2.0

cpe:2.3:a:mozilla:firefox:140.2.0
Mozilla » Firefox » Version: 140.3

cpe:2.3:a:mozilla:firefox:140.3
Mozilla » Firefox » Version: 140.3.0

cpe:2.3:a:mozilla:firefox:140.3.0
Mozilla » Firefox » Version: 140.3.1

cpe:2.3:a:mozilla:firefox:140.3.1
Mozilla » Firefox » Version: 140.4.0

cpe:2.3:a:mozilla:firefox:140.4.0
Mozilla » Firefox » Version: 140.5.0

cpe:2.3:a:mozilla:firefox:140.5.0
Mozilla » Firefox » Version: 140.6.0

cpe:2.3:a:mozilla:firefox:140.6.0
Mozilla » Firefox » Version: 140.7.0

cpe:2.3:a:mozilla:firefox:140.7.0
Mozilla » Firefox » Version: 140.7.1

cpe:2.3:a:mozilla:firefox:140.7.1
Mozilla » Firefox » Version: 140.8.0

cpe:2.3:a:mozilla:firefox:140.8.0
Mozilla » Firefox » Version: 140.9.0

cpe:2.3:a:mozilla:firefox:140.9.0
Mozilla » Firefox » Version: 140.9.1

cpe:2.3:a:mozilla:firefox:140.9.1
Mozilla » Firefox » Version: 154.0.0

cpe:2.3:a:mozilla:firefox:154.0.0
Mozilla » Firefox » Version: 154.0.1

cpe:2.3:a:mozilla:firefox:154.0.1
Mozilla » Firefox » Version: 155.0.0

cpe:2.3:a:mozilla:firefox:155.0.0
Mozilla » Thunderbird » Version: 140.0

cpe:2.3:a:mozilla:thunderbird:140.0
Mozilla » Thunderbird » Version: 140.0.1

cpe:2.3:a:mozilla:thunderbird:140.0.1
Mozilla » Thunderbird » Version: 140.1.0

cpe:2.3:a:mozilla:thunderbird:140.1.0
Mozilla » Thunderbird » Version: 140.1.1

cpe:2.3:a:mozilla:thunderbird:140.1.1
Mozilla » Thunderbird » Version: 140.10.0

cpe:2.3:a:mozilla:thunderbird:140.10.0
Mozilla » Thunderbird » Version: 140.10.1

cpe:2.3:a:mozilla:thunderbird:140.10.1
Mozilla » Thunderbird » Version: 140.10.2

cpe:2.3:a:mozilla:thunderbird:140.10.2
Mozilla » Thunderbird » Version: 140.11.0

cpe:2.3:a:mozilla:thunderbird:140.11.0
Mozilla » Thunderbird » Version: 140.12.0

cpe:2.3:a:mozilla:thunderbird:140.12.0
Mozilla » Thunderbird » Version: 140.12.1

cpe:2.3:a:mozilla:thunderbird:140.12.1
Mozilla » Thunderbird » Version: 140.14.0

cpe:2.3:a:mozilla:thunderbird:140.14.0
Mozilla » Thunderbird » Version: 140.15.0

cpe:2.3:a:mozilla:thunderbird:140.15.0
Mozilla » Thunderbird » Version: 140.16.0

cpe:2.3:a:mozilla:thunderbird:140.16.0
Mozilla » Thunderbird » Version: 140.2.0

cpe:2.3:a:mozilla:thunderbird:140.2.0
Mozilla » Thunderbird » Version: 140.2.1

cpe:2.3:a:mozilla:thunderbird:140.2.1
Mozilla » Thunderbird » Version: 140.3.0

cpe:2.3:a:mozilla:thunderbird:140.3.0
Mozilla » Thunderbird » Version: 140.3.1

cpe:2.3:a:mozilla:thunderbird:140.3.1
Mozilla » Thunderbird » Version: 140.4.0

cpe:2.3:a:mozilla:thunderbird:140.4.0
Mozilla » Thunderbird » Version: 140.5.0

cpe:2.3:a:mozilla:thunderbird:140.5.0
Mozilla » Thunderbird » Version: 140.6.0

cpe:2.3:a:mozilla:thunderbird:140.6.0
Mozilla » Thunderbird » Version: 140.7.0

cpe:2.3:a:mozilla:thunderbird:140.7.0
Mozilla » Thunderbird » Version: 140.7.1

cpe:2.3:a:mozilla:thunderbird:140.7.1
Mozilla » Thunderbird » Version: 140.7.2

cpe:2.3:a:mozilla:thunderbird:140.7.2
Mozilla » Thunderbird » Version: 140.8.0

cpe:2.3:a:mozilla:thunderbird:140.8.0
Mozilla » Thunderbird » Version: 140.8.1

cpe:2.3:a:mozilla:thunderbird:140.8.1
Mozilla » Thunderbird » Version: 140.9.0

cpe:2.3:a:mozilla:thunderbird:140.9.0
Mozilla » Thunderbird » Version: 140.9.1

cpe:2.3:a:mozilla:thunderbird:140.9.1
Mozilla » Thunderbird » Version: 153.0

cpe:2.3:a:mozilla:thunderbird:153.0
Mozilla » Thunderbird » Version: 153.0.1

cpe:2.3:a:mozilla:thunderbird:153.0.1
Mozilla » Thunderbird » Version: 153.0.2

cpe:2.3:a:mozilla:thunderbird:153.0.2
Mozilla » Thunderbird » Version: 153.0.3

cpe:2.3:a:mozilla:thunderbird:153.0.3
Mozilla » Thunderbird » Version: 153.1.0

cpe:2.3:a:mozilla:thunderbird:153.1.0
Mozilla » Thunderbird » Version: 153.1.1

cpe:2.3:a:mozilla:thunderbird:153.1.1
Mozilla » Thunderbird » Version: 153.2.0

cpe:2.3:a:mozilla:thunderbird:153.2.0
Mozilla » Thunderbird » Version: 153.3.0

cpe:2.3:a:mozilla:thunderbird:153.3.0
Mozilla » Thunderbird » Version: 153.3.1

cpe:2.3:a:mozilla:thunderbird:153.3.1
Mozilla » Thunderbird » Version: 154.0

cpe:2.3:a:mozilla:thunderbird:154.0
Mozilla » Thunderbird » Version: 155.0

cpe:2.3:a:mozilla:thunderbird:155.0
Mozilla » Thunderbird » Version: 155.0.1

cpe:2.3:a:mozilla:thunderbird:155.0.1
Mozilla » Thunderbird » Version: 156.0

cpe:2.3:a:mozilla:thunderbird:156.0
Mozilla » Thunderbird » Version: 156.0.1

cpe:2.3:a:mozilla:thunderbird:156.0.1

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-100778

Products

Pricing

Contact Us