Live › vulnerability › CVE-2026-20700
Go to dashboardA memory buffer overflow in Apple iOS, macOS, tvOS, watchOS and visionOS lets an attacker who already has memory write capability run arbitrary code. CISA lists it in the Known Exploited Vulnerabilities catalog, so it is being used in real attacks.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Apple Multiple Products | vendor | – | – |
| apple ipados | vendor | < 26.3 | 26.3 |
| apple iphone os | vendor | < 26.3 | 26.3 |
| apple macos | vendor | < 26.3 | 26.3 |
| apple tvos | vendor | < 26.3 | 26.3 |
| apple visionos | vendor |
| < 26.3 |
| 26.3 |
| apple watchos | vendor | < 26.3 | 26.3 |
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An attacker with memory write capability may be able to execute arbitrary code. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.
This page as .md · .json · in your agent: get_signal("CVE-2026-20700")
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