Affects Google Chrome/Chromium, a core browser widely used across organizations; CVSS 8.8; potential RCE via WebRTC overflow.
CVE-2026-5912
Chrome WebRTC flaw enables remote out-of-bounds write.
Is CVE-2026-5912 being exploited?
Not confirmed. CVE-2026-5912 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 0.21% probability of exploitation in the next 30 days.
How severe is CVE-2026-5912?
CVE-2026-5912 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-2026-5912?
Yes. A fix has been recorded for CVE-2026-5912. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-5912 affect?
CVE-2026-5912 affects Google Chrome, Chromium, WebRTC component. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-5912?
Update Chrome/Chromium to the latest version.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can execute arbitrary code in the browser via crafted HTML exploiting a WebRTC overflow.
Patch when possible
- affected< 147.0.7727.55
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.