CVE-2026-43743: A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system

mediumCVSS 4.7CVE-2026-43743

A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system termination.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 4.7
Published: 2026-06-29
Last updated: 2026-06-30
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-43743

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-437430.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-43743	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownApple Products Multiple Vulnerabilitieshkcert
unknownNCSC-2026-0215 [1.00] [M/H] Vulnerabilities fixed in Apple iOS and iPadOSncsc-nl
unknownNCSC-2026-0214 [1.00] [M/H] Vulnerabilities fixed in Apple MacOSncsc-nl
unknownMultiple vulnerabilities in Apple products (June 30, 2026)cert-fr-avis

Recent advisories for A race condition

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-21046: Time-of-check time-of-use race condition in fabricKeymaster trustlet prior to SMR Jul-2026 Rel…nvd · 2026-07-10
mediumCVE-2026-57030: A Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') …nvd · 2026-07-09
unknownCVE-2026-43927: FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.…nvd · 2026-07-06
highCVE-2026-58299: Time-of-check time-of-use (toctou) race condition in Microsoft Edge for Android allows an unau…nvd · 2026-07-03
mediumCVE-2026-55945: Concurrent execution using shared resource with improper synchronization ('race condition') in…nvd · 2026-07-03
unknownCVE-2026-13368: WatchGuard Fireware OS contains a race condition leading to a use-after-free vulnerability in …nvd · 2026-07-03