Widely-used Chrome browser; remote code execution via crafted HTML page; potential impact across enterprises and users.
CVE-2026-9984
Chrome UI use-after-free on Windows enables RCE via crafted HTML page.
Is CVE-2026-9984 being exploited?
Not confirmed. CVE-2026-9984 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 0.23% probability of exploitation in the next 30 days.
How severe is CVE-2026-9984?
CVE-2026-9984 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-2026-9984?
Yes. A fix has been recorded for CVE-2026-9984. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-9984 affect?
CVE-2026-9984 affects Google Chrome (Windows) <= 148.0.7778.216. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-9984?
Update Chrome to the latest version immediately
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution on Windows via crafted HTML page loaded in Chrome UI; 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.