CVE-2026-43653: An attacker on the local network may be able to cause a denial-of-service in Apple iOS and iPadOS
CVE-2026-43653 is a vulnerability in Apple iOS and iPadOS that allows an attacker on the local network to cause a denial-of-service condition. The issue was addressed by Apple through improved memory handling and fixed in iOS 18. 7. 9, iPadOS 18. 7. 9, iOS 26. 5, iPadOS 26. 5, macOS Sonoma 14. 8. 7, macOS Tahoe 26.
AI Analysis
Technical Summary
This vulnerability in Apple iOS and iPadOS allows a local network attacker to cause a denial-of-service by exploiting improper memory handling. Apple has fixed the issue in multiple OS versions including iOS 18.7.9 and 26.5, iPadOS 18.7.9 and 26.5, macOS Sonoma 14.8.7, macOS Tahoe 26.5, and tvOS 26.5. The fix involves improved memory management to prevent the denial-of-service condition. There is no CVSS score available for this vulnerability, and no known active exploitation has been reported.
Potential Impact
An attacker on the local network may cause a denial-of-service condition on affected Apple devices, potentially disrupting device availability or functionality. There is no evidence of exploitation in the wild. The impact is limited to service disruption without further details on escalation or data compromise.
Mitigation Recommendations
Apple has released official fixes for this vulnerability in iOS 18.7.9, iPadOS 18.7.9, iOS 26.5, iPadOS 26.5, macOS Sonoma 14.8.7, macOS Tahoe 26.5, and tvOS 26.5. Users and administrators should apply these updates promptly to remediate the issue. Since the vulnerability is fixed in these versions, no additional mitigation steps are required beyond patching.
CVE-2026-43653: An attacker on the local network may be able to cause a denial-of-service in Apple iOS and iPadOS
Description
CVE-2026-43653 is a vulnerability in Apple iOS and iPadOS that allows an attacker on the local network to cause a denial-of-service condition. The issue was addressed by Apple through improved memory handling and fixed in iOS 18. 7. 9, iPadOS 18. 7. 9, iOS 26. 5, iPadOS 26. 5, macOS Sonoma 14. 8. 7, macOS Tahoe 26.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Apple iOS and iPadOS allows a local network attacker to cause a denial-of-service by exploiting improper memory handling. Apple has fixed the issue in multiple OS versions including iOS 18.7.9 and 26.5, iPadOS 18.7.9 and 26.5, macOS Sonoma 14.8.7, macOS Tahoe 26.5, and tvOS 26.5. The fix involves improved memory management to prevent the denial-of-service condition. There is no CVSS score available for this vulnerability, and no known active exploitation has been reported.
Potential Impact
An attacker on the local network may cause a denial-of-service condition on affected Apple devices, potentially disrupting device availability or functionality. There is no evidence of exploitation in the wild. The impact is limited to service disruption without further details on escalation or data compromise.
Mitigation Recommendations
Apple has released official fixes for this vulnerability in iOS 18.7.9, iPadOS 18.7.9, iOS 26.5, iPadOS 26.5, macOS Sonoma 14.8.7, macOS Tahoe 26.5, and tvOS 26.5. Users and administrators should apply these updates promptly to remediate the issue. Since the vulnerability is fixed in these versions, no additional mitigation steps are required beyond patching.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.639Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a028769cbff5d86108b6de2
Added to database: 5/12/2026, 1:50:33 AM
Last enriched: 5/12/2026, 2:06:27 AM
Last updated: 5/12/2026, 3:18:51 AM
Views: 2
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