Affects Google Chrome, a ubiquitous browser; sandbox escape could yield full device compromise, widely impactful.
CVE-2026-3545
Chrome sandbox escape via crafted HTML page before 145.0.7632.159.
Is CVE-2026-3545 being exploited?
Not confirmed. CVE-2026-3545 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 0.38% probability of exploitation in the next 30 days.
How severe is CVE-2026-3545?
CVE-2026-3545 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-2026-3545?
Yes. A fix has been recorded for CVE-2026-3545. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-3545 affect?
CVE-2026-3545 affects Google Chrome (all supported platforms). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-3545?
Update Chrome to 145.0.7632.159 or newer
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Sandbox escape enabling remote code execution with user privileges via crafted HTML page.
Immediate action required
- affected< 145.0.7632.159
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.