CVE-2025-43294
LOWmacOS < 26 - Unprotected User Data Exposure via Environment Variable Handling
Title source: llmDescription
An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 26.1 and iPadOS 26.1, macOS Tahoe 26, tvOS 26.1, watchOS 26.1. An app may be able to access sensitive user data.
References (5)
Core 5
Core References
Mailing List
http://seclists.org/fulldisclosure/2025/Sep/53
Vendor Advisory
https://support.apple.com/en-us/125110
Vendor Advisory
https://support.apple.com/en-us/125632
Vendor Advisory
https://support.apple.com/en-us/125637
Vendor Advisory
https://support.apple.com/en-us/125639
Scores
CVSS v3
3.3
EPSS
0.0002
EPSS Percentile
6.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-284
Status
published
Products (5)
Apple/iOS and iPadOS
< 26.1
Apple/macOS
< 26
apple/macos
< 26.0
Apple/tvOS
< 26.1
Apple/watchOS
< 26.1
Published
Sep 15, 2025
Tracked Since
Feb 18, 2026