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CVE-2019-8746

25
FAUCET Score

CVE-2019-8746 is a critical out-of-bounds read vulnerability affecting multiple Apple products, including macOS, iOS, iCloud for Windows, tvOS, and watchOS. This flaw, addressed with improved input validation, could allow a remote attacker to cause unexpected application termination or achieve arbitrary code execution. With a CVSS score of 9.8, it presents a high risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While no public exploit code or active exploitation has been identified, and community discussion is minimal, the potential for severe impact warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.14CPE matchmatch criteria
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
>= 10.0, < 10.7CPE matchmatch criteria
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
< 12.10.1CPE matchmatch criteria
cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*
< 13.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.15CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.02%
Probability of exploitation in next 30 days
EPSS Percentile
86.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0302 is in the 77th percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

support.apple.com / en-us/HT210604
Vendor Advisory
support.apple.com / en-us/HT210606
Vendor Advisory
support.apple.com / en-us/HT210607
Vendor Advisory
support.apple.com / en-us/HT210634
Vendor Advisory
support.apple.com / en-us/HT210635
Vendor Advisory
support.apple.com / en-us/HT210636
Vendor Advisory
support.apple.com / en-us/HT210637
Vendor Advisory
support.apple.com / en-us/HT210722
Vendor Advisory