CVE-2021-30656

MEDIUM

5.5

CVSS Score

Published: September 8, 2021 at 02:48 PM UTC

Updated: June 17, 2026 at 03:50 AM UTC

2 products affected across 1 vendoriPhone OSiPadOS

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.9%

Description

An access issue was addressed with improved memory management. This issue is fixed in iOS 14.5 and iPadOS 14.5. A malicious application may be able to determine kernel memory layout.

Affected

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

iPadOS · Apple

95%

v < 14.5

Affected range stops below 14.5, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 14.5

Affected range stops below 14.5, 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/HT212317

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT212317

CVSS

5.5MEDIUM[email protected]

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

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfo

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