CVE-2026-24869
Use-after-free in Firefox layout could allow code execution via crafted web content.
Is CVE-2026-24869 being exploited?
Not confirmed. CVE-2026-24869 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.24% probability of exploitation in the next 30 days.
How severe is CVE-2026-24869?
CVE-2026-24869 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-24869?
Yes. A fix has been recorded for CVE-2026-24869. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-24869 affect?
CVE-2026-24869 affects Mozilla Firefox < 147.0.2. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-24869?
Update Firefox to 147.0.2 or newer
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Memory corruption in Layout: Scrolling and Overflow; may crash or allow arbitrary code execution.
Patch when possible