HOMEVULNERABILITIESCVE-2023-40414
CRITICAL

CVE-2023-40414

CWE-416Published: January 10, 2024· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 10, iOS 17 and iPadOS 17, tvOS 17, macOS Sonoma 14, Safari 17. Processing web content may lead to arbitrary code execution.

NVD Source

Risk Analysis

A use-after-free vulnerability in Apple's software stack allows for arbitrary code execution when processing web content. This critical flaw affects multiple Apple platforms, including iOS, macOS, and Safari.

There is no public exploit known for this vulnerability, and it is not in the KEV catalog. It is remotely exploitable with low attack complexity.

Recommended Action

Update all affected Apple devices to the latest versions, including iOS 17, iPadOS 17, tvOS 17, macOS Sonoma 14, and Safari 17.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-40414 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Apple6 product(s)
safariipadosiphone osmacostvoswatchos
Source: NVD CPE · 6 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://support.apple.com/en-us/HT213936
ADVISORYhttps://support.apple.com/en-us/HT213937
ADVISORYhttps://support.apple.com/en-us/HT213938
ADVISORYhttps://support.apple.com/en-us/HT213940
ADVISORYhttps://support.apple.com/en-us/HT213941
ADVISORYhttps://support.apple.com/en-us/HT213936
ADVISORYhttps://support.apple.com/en-us/HT213937
ADVISORYhttps://support.apple.com/en-us/HT213938
ADVISORYhttps://support.apple.com/en-us/HT213940
ADVISORYhttps://support.apple.com/en-us/HT213941

All References (12)

→
http://www.openwall.com/lists/oss-security/2024/02/05/8
→
https://support.apple.com/en-us/HT213936Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/HT213937Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/HT213938Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/HT213940Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/HT213941Release Notes · Vendor Advisory
→
http://www.openwall.com/lists/oss-security/2024/02/05/8
→
https://support.apple.com/en-us/HT213936Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/HT213937Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/HT213938Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/HT213940Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/HT213941Release Notes · Vendor Advisory

Quick Facts

CVE IDCVE-2023-40414
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-416
CISA KEVNo
Affected1 vendor(s)
PublishedJan 10, 2024

Related CVEs (CWE-416)

CVE-2010-2302
10.0
CVE-2024-43102
10.0
CVE-2010-2300
10.0
CVE-2015-3107
10.0
CVE-2026-13782
10.0
CVE-2010-3116
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-40414 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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