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CVE-2023-40431

22
FAUCET Score

CVE-2023-40431 is a critical vulnerability affecting iOS and iPadOS that could allow an application to execute arbitrary code with kernel privileges due to improved memory handling. With a CVSS score of 7.8 (HIGH), this local vulnerability requires user interaction (UI:R) but has low attack complexity (AC:L), potentially leading to complete compromise of confidentiality, integrity, and availability. While no public exploits, Metasploit modules, or KEV entries exist, and community discussion is minimal, it is crucial to update to iOS 17 and iPadOS 17 to mitigate this risk.

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:*:*:*:*:*:*:*:*

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
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
21.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 19th 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/HT213938
seclists.org / fulldisclosure/2023/Oct/8
Mailing ListThird Party Advisory
support.apple.com / en-us/HT213938
Release NotesVendor Advisory