CVE-2026-43753
An attacker can exploit multiple vulnerabilities in Apple macOS Tahoe, Sonoma, and Sequoia to escalate privileges, execute arbitrary code, carry out a Denial of Service attack, disclose information, manipulate files, and bypass security measures.
CSIRTS triage
- What
- Multiple vulnerabilities can escalate privileges, execute arbitrary code, and cause Denial of Service.
- Who is affected
- Users of macOS Tahoe, Sonoma, and Sequoia.
- Urgency
- Remediation is high urgency due to the severity of the vulnerabilities.
- Action
- Update macOS to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
Advisory coverage (6)
- high[NEW] [high] Apple macOS (Tahoe, Sonoma, and Sequoia): Multiple vulnerabilitiescert-bund · 2026-07-28
- medium[NEW] [medium] Apple iOS and iPadOS: Multiple vulnerabilitiescert-bund · 2026-07-28
- unknownNCSC-2026-0267 [1.00] [M/H] Vulnerabilities fixed in Apple MacOSncsc-nl · 2026-07-28
- unknownNCSC-2026-0266 [1.00] [M/H] Vulnerabilities fixed in Apple iOS and iPadOSncsc-nl · 2026-07-28
- unknownMultiple vulnerabilities in Apple products (July 28, 2026)cert-fr-avis · 2026-07-28
- mediumCVE-2026-43753: An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS …nvd · 2026-07-27
External references
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[](https://www.csirts.com/cve/CVE-2026-43753)