CVE-2019-8834

MEDIUM

4.3

CVSS Score

Published: October 27, 2020 at 07:53 PM UTC

Updated: June 17, 2026 at 02:42 AM UTC

7 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

MEDIUM4.3

Exploit prediction

EPSS 1%

Description

A configuration issue was addressed with additional restrictions. This issue is fixed in tvOS 13.3, watchOS 6.1.1, iCloud for Windows 10.9, macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra, iOS 13.3 and iPadOS 13.3, iTunes 12.10.3 for Windows, iCloud for Windows 7.16. An attacker in a privileged network position may be able to bypass HSTS for a limited number of specific top-level domains previously not in the HSTS preload list.

Affected

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

iCloud · Apple

95%

v < 7.1610.0 ≤ v < 10.9

Affected range stops below 10.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.16, so it looks safe — our inference, not a vendor statement

iPadOS · Apple

95%

v < 13.3

Affected range stops below 13.3, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 13.3

Affected range stops below 13.3, so it looks safe — our inference, not a vendor statement

iTunes · Apple

95%

v < 12.10.3

Affected range stops below 12.10.3, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 10.15v < 10.15.2v < 10.9v < 12.10v < 13.3v < 6.1v < 7.16

Affected range stops below 10.15, so it looks safe — our inference, not a vendor statement

Affected range stops below 10.15.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 10.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.16, so it looks safe — our inference, not a vendor statement

tvOS · Apple

95%

v < 13.3

Affected range stops below 13.3, so it looks safe — our inference, not a vendor statement

watchOS · Apple

95%

v < 6.1.1

Affected range stops below 6.1.1, 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