SEPTEMBER 17, 2026
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Case File

CVE-2026-43803

CRITICAL · CVSS 9.8 EPSS 0.78%

Source: NVD + CISA KEV + EPSS · Published 2026-07-27 · Last synced 2026-08-26

CyberRota Analysis

AI-Generated

An out-of-bounds write vulnerability in multiple Apple operating systems could allow a remote attacker to execute arbitrary code, potentially leading to unexpected system termination. Organizations using affected versions of iOS, iPadOS, macOS, tvOS, visionOS, and watchOS should prioritize applying the latest updates to mitigate this critical risk. Immediate action is essential to protect against potential exploitation and maintain system integrity.

CVE
CVE-2026-43803
Severity
CRITICAL
CVSS
9.8
EPSS
0.78%

Original NVD Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. A remote attacker may be able to cause unexpected system termination.

Related CVEs

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