Use After Free in Apple iOS And Ipados

CVE-2021-1764

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause a denial of service.

Vulnerability class: Use-After-Free

EPSS: 0.020 (78.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-1764?
CVE-2021-1764 is a high-severity vulnerability in Apple iOS And Ipados, classified under Use After Free. CVSS score: 7.5/10. Published 2021-04-02.
How severe is CVE-2021-1764?
High severity. CVSS v3 base score is 7.5 out of 10.