High severity · published Dec 12, 2025
CVE-2025-43510
Apple Multiple Products Improper Locking Vulnerability
In wildKEV
7.8
CVSS
0.4%
EPSS
Yes
On KEV
Description
A memory corruption issue was addressed with improved lock state checking. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may cause unexpected changes in memory shared between processes.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildYes
CISA KEVListed Mar 20, 2026
Federal remediation dueApr 3, 2026
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 14.8.2; before 15.7.2; before 26.1 · source: vendor, NVD
IO
iOS · Apple
before 18.7.2; 26.0 · source: NVD
IA
iOS and iPadOS · Apple
before 18.7.2; before 26.1 · source: vendor
TV
tvOS · Apple
before 26.1 · source: vendor, NVD
VI
visionOS · Apple
before 26.1 · source: vendor, NVD
WA
watchOS · Apple
before 26.1 · source: vendor, NVD
MP
Multiple Products · Apple
All versions, or not specified · source: KEV
In the news
AdvisoryHigh
CISA Adds Five Known Exploited Vulnerabilities to Catalog
CISA has added five new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation.
CVE-2025-31277 Apple Multiple Products Buffer Overflow Vulnerability
CVE-2025-32432 Craft CMS Code Injection Vulnerability
CVE-2025-43510 Apple Multiple Products Improper Locking Vulnerability
CVE-2025-43520 Apple Multiple Products Classic Buffer Overflow Vulnerability
CVE-2025-54068 Laravel Livewire Code Injection Vulnerability
These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.
Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.
Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria .
Mar 20, 2026·CISA Advisories
VulnerabilityHigh
[CISA KEV] CVE-2025-43510: Apple Multiple Products - Apple Multiple Products Improper Locking Vulnerability
Apple watchOS, iOS, iPadOS, macOS, visionOS, and tvOS contain an improper locking vulnerability that could allow a malicious application to cause unexpected changes in memory shared between processes.
MPMultiple ProductsCVE-2025-43510
Mar 20, 2026·CISA KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-43510
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-43510
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
support.apple.com
https://support.apple.com/en-us/125632
support.apple.com
https://support.apple.com/en-us/125633
support.apple.com
https://support.apple.com/en-us/125634
support.apple.com
https://support.apple.com/en-us/125635
support.apple.com
https://support.apple.com/en-us/125636
support.apple.com
https://support.apple.com/en-us/125637
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