Widely-used Chrome/Chromium browser; remote code execution risk via QUIC; could disrupt IT operations if exploited widely.
CVE-2026-13799
Use-after-free in QUIC (Chrome <150.0.7871.47) enabling remote heap corruption via crafted traffic.
Is CVE-2026-13799 being exploited?
Not confirmed. CVE-2026-13799 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 0.32% probability of exploitation in the next 30 days.
How severe is CVE-2026-13799?
CVE-2026-13799 is rated High with a CVSS score of 8.1. 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-2026-13799?
Yes. A fix has been recorded for CVE-2026-13799. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-13799 affect?
CVE-2026-13799 affects Google Chrome (QUIC), Chromium (QUIC). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-13799?
Update Chrome to latest (>=150.0.7871.47)
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution via QUIC network traffic; heap corruption could lead to arbitrary code in Chrome.
Immediate action required
- 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.