Widely used Chrome; high-severity RCE via crafted HTML; could affect many enterprises/users.
CVE-2026-9947
Use-after-free in Chrome HTML handling enables remote code execution via crafted HTML page.
Is CVE-2026-9947 being exploited?
Not confirmed. CVE-2026-9947 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 0.30% probability of exploitation in the next 30 days.
How severe is CVE-2026-9947?
CVE-2026-9947 is rated High with a CVSS score of 8.8. 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-2026-9947?
Yes. A fix has been recorded for CVE-2026-9947. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-9947 affect?
CVE-2026-9947 affects Google Chrome (Chromium-based) prior to 148.0.7778.216. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-9947?
Update to the latest Chrome build (>= 148.0.7778.216).
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution in Chrome sandbox via crafted HTML page; attacker can run arbitrary code.
Immediate action required
- affected< 148.0.7778.216
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.