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CVE-2023-40409

21
FAUCET Score

CVE-2023-40409 is a memory handling vulnerability affecting Apple's iOS, iPadOS, macOS, tvOS, and watchOS that could allow an application to execute arbitrary code with kernel privileges. It carries a CVSS score of 7.8 (High), indicating a local attack vector with low complexity, requiring user interaction, and leading to high impacts on confidentiality, integrity, and availability. While the vulnerability has been patched in recent OS updates, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 17.0CPE matchmatch criteria
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
< 17.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
>= 12.0.0, < 12.7CPE matchmatch criteria
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
>= 13.0, < 13.6CPE matchmatch criteria
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
< 17.0CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*

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
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 26th percentile among its peer group of 11,621 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

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 / kb/HT213931
support.apple.com / kb/HT213932
support.apple.com / kb/HT213936
support.apple.com / kb/HT213937
support.apple.com / kb/HT213938
seclists.org / fulldisclosure/2023/Oct/10
seclists.org / fulldisclosure/2023/Oct/5
Mailing ListThird Party Advisory
seclists.org / fulldisclosure/2023/Oct/6
seclists.org / fulldisclosure/2023/Oct/8
seclists.org / fulldisclosure/2023/Oct/9
support.apple.com / en-us/HT213931
Release NotesVendor Advisory
support.apple.com / en-us/HT213932
Release NotesVendor Advisory
support.apple.com / en-us/HT213936
Release NotesVendor Advisory
support.apple.com / en-us/HT213937
Release NotesVendor Advisory
support.apple.com / en-us/HT213938
Release NotesVendor Advisory