Widely used Chrome/Chromium; Bluetooth policy flaw enables remote privilege escalation, risking endpoints across many orgs.
CVE-2026-13903
Privilege escalation via crafted HTML page in Chrome Bluetooth policy.
Is CVE-2026-13903 being exploited?
Not confirmed. CVE-2026-13903 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 0.34% probability of exploitation in the next 30 days.
How severe is CVE-2026-13903?
CVE-2026-13903 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-2026-13903?
Yes. A fix has been recorded for CVE-2026-13903. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-13903 affect?
CVE-2026-13903 affects Google Chrome (pre-150.0.7871.47), Chromium. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-13903?
Update Chrome to the latest version (>=150.0.7871.47).
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can escalate privileges on the host by loading a crafted HTML page exploiting Chrome's Bluetooth policy enforcement.
Patch when possible
- affected< 150.0.7871.47
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.