CVE-2026-17684
Sandbox escape via crafted HTML in Google Chrome for iOS (pre-151.0.7922.72).
Is CVE-2026-17684 being exploited?
Not confirmed. CVE-2026-17684 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 0.49% probability of exploitation in the next 30 days.
How severe is CVE-2026-17684?
CVE-2026-17684 is rated Critical with a CVSS score of 9.6. 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-2026-17684?
Yes. A fix has been recorded for CVE-2026-17684. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-17684 affect?
CVE-2026-17684 affects Google Chrome for iOS < 151.0.7922.72, iPhone/iPad running vulnerable Chrome. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-17684?
Update Chrome for iOS to 151.0.7922.72 or later immediately.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
A renderer-compromised attacker can escape the browser sandbox to execute code or access device data.
Immediate action required
- affected< 151.0.7922.72
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.