CVE-2026-43811: A race condition was addressed with improved checks. This issue is fixed in iOS 26.6 and iPadOS 26.6. An app may be able to modify protected parts of the file system.

mediumCVSS 4.7CVE-2026-43811

A race condition was addressed with improved checks. This issue is fixed in iOS 26.6 and iPadOS 26.6. An app may be able to modify protected parts of the file system.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 4.7
Published: 2026-07-27
Last updated: 2026-07-28
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-43811

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-2026-438110.08% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 0% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-43811	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

medium[NEW] [medium] Apple iOS and iPadOS: Multiple vulnerabilitiescert-bund
unknownNCSC-2026-0266 [1.00] [M/H] Vulnerabilities fixed in Apple iOS and iPadOSncsc-nl
unknownMultiple vulnerabilities in Apple products (July 28, 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.

mediumCVE-2026-67607: LightFTP 2.3.1 contains a race condition vulnerability that allows remote attackers to crash t…nvd · 2026-07-31
unknownCVE-2026-16727: Concurrent Execution using Shared Resource with Improper Synchronization (“Race Condition”) in…nvd · 2026-07-30
criticalCVE-2026-64720: A race condition was addressed with improved state handling. This issue is fixed in iOS 26.6 a…nvd · 2026-07-27
criticalCVE-2026-43805: A race condition was addressed with improved state handling. This issue is fixed in iOS 26.6 a…nvd · 2026-07-27
mediumCVE-2026-43781: A race condition was addressed with improved state handling. This issue is fixed in macOS Sequ…nvd · 2026-07-27
mediumCVE-2026-43770: A race condition was addressed with additional validation. This issue is fixed in macOS Sequoi…nvd · 2026-07-27