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HIGHCVE-2026-2799Published Modified CNA mozilla

CVE-2026-2799: Use-after-free in the DOM: Core & HTML component

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Metrics

CVSS v3.1
8.8
Severity
HIGH
Fixed in
148
Affected Products
2

Fix available

148
Affected packages
  • Mozilla / Firefox
    Fixed in 148
  • Mozilla / Thunderbird
    Fixed in 148
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
CVE-2026-2799: Use-after-free in the DOM: Core & HTML component | HarborGuard CVE