Is CVE-2019-8834 in the CISA KEV catalog?

No. CVE-2019-8834 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-8834?

CVE-2019-8834 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2019-8834?

CVE-2019-8834 has an EPSS score of 1.16% (63th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-8834?

Upgrade iCloud (Legacy) to 10.9 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2019-8834

MEDIUM

4.3

CVSS v3

NVD

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.

How to fix

Remediation Available

iCloud (Legacy)Windows application

Affected:10.0 10.9Fixed in:10.9Apple Inc.

Affected:7.16Fixed in:7.16Apple Inc.

iTunesWindows application

Affected:12.10.3Fixed in:12.10.3Apple Inc.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

1.16%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Vendor Advisory7

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.