// For flags

CVE-2023-23514

XNU NFSSVC Root Check Bypass / Use-After-Free

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, iOS 16.3.1 and iPadOS 16.3.1, macOS Ventura 13.2.1, macOS Big Sur 11.7.5. An app may be able to execute arbitrary code with kernel privileges.

XNU NFSSVC suffers from root check bypass and use-after-free vulnerabilities due to insufficient locking in upcall worker threads.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-01-12 CVE Reserved
  • 2023-02-15 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-10-04 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apple
Search vendor "Apple"
 Ipados
Search vendor "Apple" for product "Ipados"
 < 16.3.1
Search vendor "Apple" for product "Ipados" and version " < 16.3.1"
-
Affected
Apple
Search vendor "Apple"
 Iphone Os
Search vendor "Apple" for product "Iphone Os"
 < 16.3.1
Search vendor "Apple" for product "Iphone Os" and version " < 16.3.1"
-
Affected
Apple
Search vendor "Apple"
 Macos
Search vendor "Apple" for product "Macos"
 >= 13.0 < 13.2.1
Search vendor "Apple" for product "Macos" and version " >= 13.0 < 13.2.1"
-
Affected