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CVE-2018-4474

A memory consumption issue was addressed with improved memory handling. This issue is fixed in...

7.5 High

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iCloud for Windows 7.7, watchOS 5, Safari 12, iOS 12, iTunes 12.9 for Windows, tvOS 12. Unexpected interaction causes an ASSERT failure.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.71%Up 1.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iCloud for Windows 7.7, watchOS 5, Safari 12, iOS 12, iTunes 12.9 for Windows, tvOS 12. Unexpected interaction causes an ASSERT failure.

Record
CVE-2018-4474
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-400
Updated
2026-11-02
CVE List No score

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iCloud for Windows 7.7, watchOS 5, Safari 12, iOS 12, iTunes 12.9 for Windows, tvOS 12. Unexpected interaction causes an ASSERT failure.

Record
CVE-2018-4474
Updated
2026-11-02
EUVDEUVD-2018-16260 No score

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iCloud for Windows 7.7, watchOS 5, Safari 12, iOS 12, iTunes 12.9 for Windows, tvOS 12. Unexpected interaction causes an ASSERT failure.

Record
EUVD-2018-16260
Updated
2026-11-03
GitHub AdvisoriesGHSA-jr79-gh2g-m9rv No score

A memory consumption issue was addressed with improved memory handling. This issue is fixed in...

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iCloud for Windows 7.7, watchOS 5, Safari 12, iOS 12, iTunes 12.9 for Windows, tvOS 12. Unexpected interaction causes an ASSERT failure.

Record
GHSA-jr79-gh2g-m9rv
Weakness
CWE-400
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-4474 is a high vulnerability (CVSS 7.5) in Apple Icloud, published October 27, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.71%, the 77th percentile. No source names a fixed version.

References

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