What’s Vulnerable › Vulnerabilities
CVE-2021-1780
- Severity: medium (CVSS 4.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-04-02 · updated 2026-06-17
- Weakness: CWE-665
Description
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 14.4 and iPadOS 14.4. An attacker in a privileged position may be able to perform a denial of service attack.
Affected products
- Apple iPadOS: before 14.4 — fixed in 14.4
- Apple Iphone Os: before 14.4 — fixed in 14.4
How to fix
Upgrade to a fixed version: Apple iPadOS 14.4; Apple Iphone Os 14.4. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2021-1780 or the next vulnerability affects your stack