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Critical severity · published Sep 15, 2025
CVE-2025-43342
A correctness issue was addressed with improved checks
9.8
CVSS
0.8%
EPSS
No
On KEV
Description
A correctness issue was addressed with improved checks. This issue is fixed in Safari 26, iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing maliciously crafted web content may lead to an unexpected process crash.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IO
iOS · Apple
before 18.7 · source: NVD
MA
macOS · Apple
before 26.0 · source: NVD
SA
Safari · Apple
before 26.0 · source: NVD
TV
Tvos · Apple
before 26.0 · source: NVD
VI
Visionos · Apple
before 26.0 · source: NVD
WA
Watchos · Apple
before 26.0 · source: NVD
WE
Webkitgtk · Webkitgtk
before 2.48.7 · source: NVD
WW
Wpe Webkit · Wpewebkit
before 2.48.7 · source: NVD
Affected product
IO
iOS
Apple
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-43342
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-43342
Release Notes
https://support.apple.com/en-us/125108
Release Notes
https://support.apple.com/en-us/125109
support.apple.com
https://support.apple.com/en-us/125110
Release Notes
https://support.apple.com/en-us/125113
Release Notes
https://support.apple.com/en-us/125114
Release Notes
https://support.apple.com/en-us/125115
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