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CVE-2025-43510

7.8, high Known exploited

Apple Multiple Products Improper Locking Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
7.8, high high CVSS v3.1
EPSS, next 30 days
0.4% higher than 27.6% of scored CVEs
Exploitation
Confirmed in the wild
Published
12 Dec 202510 months ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 20 Mar 2026. US federal agencies had to remediate by 3 Apr 2026, a deadline that has passed.

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.

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.

Details

Vendor
Apple
Product
iOS and iPadOS
Weakness
CWE-667 (opens in a new tab)
Status
Analyzed
Updated
7 Oct 2026
Assigner
product-security@apple.com

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References 10

Advisories 8

Other references 2

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Apple CVEs

Every Apple CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-86950 Apple Multiple Products Out-of-Bounds Write Vulnerability KEV EPSS 1% 8.8, high
  • CVE-2026-65400 Apple macOS Improper Authentication Vulnerability KEV EPSS 2% 9.8, critical
  • CVE-2026-20700 Apple Multiple Buffer Overflow Vulnerability KEV EPSS 1% 7.8, high
  • CVE-2025-43529 Apple Multiple Products Use-After-Free WebKit Vulnerability KEV EPSS 9% 8.8, high
  • CVE-2025-43520 Apple Multiple Products Classic Buffer Overflow Vulnerability KEV EPSS 0.4% 5.5, medium
  • CVE-2023-43000 Apple Multiple products Use-After-Free Vulnerability KEV EPSS 4% 8.8, high
  • CVE-2025-43300 Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability KEV EPSS 32% 10, critical
  • CVE-2025-31277 Apple Multiple Products Buffer Overflow Vulnerability KEV EPSS 2% 8.8, high

Beyond this page

Is CVE-2025-43510 in your network?

This page tells you how dangerous CVE-2025-43510 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2025-43510 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2025-43510 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 18 Oct 2026, not the live upstream state.