CVE-2026-100797High· 8.8▾ TwilightPrivilege escalation due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
— → 8.8
none → high
Privilege escalation due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-100832High· 8.8Use-after-free in the Graphics: Canvas2D component
CVE-2026-100818Critical· 9.6Sandbox escape due to use-after-free in the Widget: Gtk component
CVE-2026-96869NoneInformation disclosure in the Networking component
CVE-2026-100831High· 8.8Use-after-free in the DOM: UI Events & Focus Handling component
CVE-2026-100825High· 8.8Use-after-free in the JavaScript Engine: JIT component
CVE-2026-100821NoneSite isolation issue in the Panning and Zooming component