Vulnerability in Apple iOS And Ipados
CVE-2025-43510
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (27.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Apple iOS And Ipados — versions 0
- Apple Ipados — versions 26.0
- Apple Iphone OS — versions 26.0
- Apple macOS — versions 26.0, 0
- Apple tvOS — versions 0
- Apple Visionos — versions 0
- Apple watchOS — versions 0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
References
- support.apple.com/en-us/125632 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125633 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125634 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125635 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125636 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125637 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125638 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125639 (Release Notes, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Technical Description)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2025-43510?
- CVE-2025-43510 is a high-severity vulnerability in Apple iOS And Ipados, classified under Improper Locking. CVSS score: 7.8/10. Published 2025-12-12.
- How severe is CVE-2025-43510?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2025-43510 known to be exploited?
- Yes. CVE-2025-43510 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-03-20), indicating it is being actively exploited.