CVE-2021-1780

MEDIUM

4.4

CVSS Score

Published: April 2, 2021 at 05:58 PM UTC

Updated: June 17, 2026 at 03:32 AM UTC

2 products affected across 1 vendoriPhone OSiPadOS

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Severity

MEDIUM4.4

Exploit prediction

EPSS 0.3%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS · Apple

95%

v < 14.4

Affected range stops below 14.4, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 14.4

Affected range stops below 14.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://support.apple.com/en-us/HT212146

References (1)

x_refsource_MISCRelease NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT212146

CVSS

4.4MEDIUM[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-665

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