CVE-2026-43814
Use-after-free in Apple OS allows apps to crash or reboot devices (Denial of Service).
Is CVE-2026-43814 being exploited?
Not confirmed. CVE-2026-43814 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 0.58% probability of exploitation in the next 30 days.
How severe is CVE-2026-43814?
CVE-2026-43814 is rated Critical with a CVSS score of 9.8. 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-2026-43814?
Yes. A fix has been recorded for CVE-2026-43814. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-43814 affect?
CVE-2026-43814 affects iOS < 26.6, iPadOS < 26.6, macOS Tahoe < 26.6, tvOS < 26.6, and 1 further product or version. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-43814?
Upgrade devices to OS 26.6+ immediately and restrict untrusted apps until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Malicious or crafted app can trigger a use-after-free to cause unexpected system termination (local/app-induced DoS).
Immediate action required
- affected< 26.6
- affected< 26.6
- affected< 26.6
- affected< 26.6
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.