CVE-2026-118027Critical· 9.1▾ MidnightFrame poisoning in the Layout component. This vulnerability was fixed in Firefox ESR 115.44.
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 50.1 · 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. The CVSS score shown above comes from the CISA ADP record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 28.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.1%
Last analysed / modified upstream
— → 9.1
none → critical
Frame poisoning in the Layout component. This vulnerability was fixed in Firefox ESR 115.44.
FirefoxRefer 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.
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CVE-2026-117974High· 8.8Use-after-free in the XML component
CVE-2026-117979High· 8.8Incorrect boundary conditions in the Graphics: WebRender component
CVE-2026-117971Critical· 9.6Sandbox escape due to use-after-free in the Print Preview component
CVE-2026-117978High· 8.1Incorrect boundary conditions in the Graphics component
CVE-2026-117968High· 8.8Use-after-free in the DOM: Core & HTML component