CVE-2026-4673
Chrome WebAudio heap overflow allows remote memory write via crafted HTML.
Is CVE-2026-4673 being exploited?
Not confirmed. CVE-2026-4673 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 0.50% probability of exploitation in the next 30 days.
How severe is CVE-2026-4673?
CVE-2026-4673 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-2026-4673?
Yes. A fix has been recorded for CVE-2026-4673. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-4673 affect?
CVE-2026-4673 affects Google Chrome (WebAudio). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-4673?
Update Chrome to the latest version (≥146.0.7680.165).
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can cause out-of-bounds write through WebAudio, risking code execution or browser crash.
Patch when possible
- affected< 146.0.7680.165
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.