Remote code execution in widely used Google Chrome via WebRTC; client-side RCE affecting enterprise desktop browsers requires organization-wide mitigation.
CVE-2026-84347
Chrome WebRTC use-after-free enables remote code execution in the browser.
Is CVE-2026-84347 being exploited?
Not confirmed. CVE-2026-84347 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 0.32% probability of exploitation in the next 30 days.
How severe is CVE-2026-84347?
CVE-2026-84347 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-2026-84347?
Yes. A fix has been recorded for CVE-2026-84347. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-84347 affect?
CVE-2026-84347 affects Google Chrome <152.0.7977.75 (desktop). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-84347?
Update Chrome to 152.0.7977.75+ immediately and enforce managed browser updates; restrict untrusted WebRTC pages.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution via a crafted HTML page hitting a WebRTC use-after-free, allowing arbitrary code execution in the browser sandbox and endpoint compromise.
Immediate action required
- affected< 152.0.7977.75
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.