Memory Handling Flaw in Apple Operating Systems
CVE-2026-20698

5.5MEDIUM

Key Information:

Vendor

Apple
Status
iOS And iPad OS
Mac OS
TV OS
Visionos
Vendor
CVE Published:
25 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-20698?

An issue has been identified that may allow an application to unexpectedly terminate the system or corrupt kernel memory due to inadequate memory handling protocols. Affected users are advised to update to the latest versions of iOS, iPadOS, macOS, tvOS, visionOS, and watchOS, where these vulnerabilities have been addressed to enhance overall system security.

Affected Version(s)

iOS and iPadOS 0 < 26.4

macOS 0 < 26.4

tvOS 0 < 26.4

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-20698-PF_ROUTE-Heap-Overflow
Created by Somisomair

References

https://support.apple.com/en-us/126792
https://support.apple.com/en-us/126794
https://support.apple.com/en-us/126797

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.