Chrome is ubiquitous; CVSS 9.8 remote bypass of system access can enable widespread unauthorized access/data exfiltration and should be escalated org-wide.
CVE-2026-84325
Chrome DataTransfer input-validation flaw allows access restriction bypass via social engineering.
Is CVE-2026-84325 being exploited?
Not confirmed. CVE-2026-84325 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 0.25% probability of exploitation in the next 30 days.
How severe is CVE-2026-84325?
CVE-2026-84325 is rated Critical with a CVSS score of 9.8. 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-2026-84325?
Yes. A fix has been recorded for CVE-2026-84325. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-84325 affect?
CVE-2026-84325 affects Google Chrome (desktop) < 152.0.7977.75, Chromium-based browsers sharing DataTransfer code. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-84325?
Update Chrome to 152.0.7977.75 or later immediately
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker using social engineering and a co‑installed app can bypass system access restrictions, enabling unauthorized data transfer or privileged actions.
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.