Memory Corruption Vulnerability in Apple iOS Devices and Software
CVE-2026-20700

7.8HIGH

Key Information:

Vendor

Apple
Status
Mac OS
Watch OS
Visionos
iOS And iPad OS
Vendor
CVE Published:
11 February 2026

Badges

📈 Trended📈 Score: 2,450👾 Exploit Exists🦅 CISA Reported

What is CVE-2026-20700?

CVE-2026-20700 is a memory corruption vulnerability found in Apple’s iOS devices and related software platforms, including watchOS, tvOS, macOS, and visionOS. This flaw primarily affects the state management processes within these operating systems. If successfully exploited, an attacker with the capability to manipulate memory could potentially execute arbitrary code on the device. Such a capability poses a significant risk, as it may allow unauthorized access to sensitive data, control over device functionality, or the ability to install malicious software. The presence of this vulnerability raises concerns for organizations utilizing Apple devices, as the potential for targeted attacks could result in severe operational disruptions and data integrity issues.

Potential impact of CVE-2026-20700

  1. Arbitrary Code Execution: The vulnerability allows attackers to execute malicious code remotely on compromised devices, which could lead to unauthorized access to sensitive information and potentially control entire systems.

  2. Targeted Attacks: The issue has been linked to sophisticated attacks on specific individuals, suggesting that adversaries may exploit this vulnerability for espionage, data theft, or disruption of services, particularly in organizations relying extensively on Apple devices.

  3. Increased Complexity in Security Management: Organizations must enhance their security postures and incident response strategies to address the risks posed by this vulnerability, which could lead to increased operational costs and resource allocation for prevention and response efforts.

CISA has reported CVE-2026-20700

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2026-20700 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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Affected Version(s)

iOS and iPadOS < 26.3

macOS < 26.3

tvOS < 26.3

References

https://support.apple.com/en-us/126348
https://support.apple.com/en-us/126352
https://support.apple.com/en-us/126353

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 📈

    Vulnerability started trending

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

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