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CVE-2019-8605

81
FAUCET Score

CVE-2019-8605 is a use-after-free vulnerability affecting Apple's iOS, macOS, tvOS, and watchOS, specifically in the in6_pcbdetach function. This flaw allows a malicious application to execute arbitrary code with system privileges due to improved memory management not being in place. With a CVSS score of 7.8 (HIGH), it has a low attack complexity and requires user interaction, but can lead to high impact on confidentiality, integrity, and availability. This vulnerability is actively exploited, listed in the KEV catalog, and has publicly available exploit code (EDB-47409, EDB-46892), with significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 12.3CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.14.5CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
< 12.3CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
< 5.2.1CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
17.44%
Probability of exploitation in next 30 days
EPSS Percentile
96.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Added to KEV · Jun 27, 2022
ExploitDB: EDB-47409 · Sep 23, 2019
This CVE's current EPSS score of 0.1744 is in the 97th percentile among its peer group of 11,615 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

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

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
support.apple.com / HT210118
Release NotesVendor Advisory
support.apple.com / HT210119
Release NotesVendor Advisory
support.apple.com / HT210120
Release NotesVendor Advisory
support.apple.com / HT210122
Release NotesVendor Advisory