CVE-2026-11003
Use-after-free in Chrome WebRTC allows RCE via crafted HTML page.
Is CVE-2026-11003 being exploited?
Not confirmed. CVE-2026-11003 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 0.46% probability of exploitation in the next 30 days.
How severe is CVE-2026-11003?
CVE-2026-11003 is rated High. 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-2026-11003?
Yes. A fix has been recorded for CVE-2026-11003. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-11003 affect?
CVE-2026-11003 affects Google Chrome for Desktop before 149.0.7827.53. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-11003?
Update to Chrome 149.0.7827.53 or newer
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution in Chrome sandbox via crafted HTML exploiting WebRTC use-after-free.
Immediate action required
- affected< 149.0.7827.53
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.