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CVE

CVE-2023-40396

The issue was addressed with improved memory handling. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14, wat

The issue was addressed with improved memory handling. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14, watchOS 10, tvOS 17. An app may be able to execute arbitrary code with kernel privileges.

HIGH · CVSS 7.8 EPSS 0.00243
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
▤

Affected Products & Versions

5
apple ipados< 17.0
apple iphone os< 17.0
apple macos< 14.0
apple tvos< 17.0
apple watchos< 10.0
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Microsoft Office Child Process - MacOS
producthighRemote Access Tool - Renamed MeshAgent Execution - MacOS
producthighBinary Padding - MacOS
productmediumSuspicious Execution via macOS Script Editor
productmediumSystem Information Discovery Via Sysctl - MacOS
productmediumNew File Exclusion Added To Time Machine Via Tmutil - MacOS
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · product-security@apple.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Jul 2024 · 09:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.apple.com/en-us/HT213936Vendor Advisory
https://support.apple.com/en-us/HT213937Vendor Advisory
https://support.apple.com/en-us/HT213938Vendor Advisory
https://support.apple.com/en-us/HT213940Vendor Advisory
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