CVEvulnerability

CVE-2026-20700

7.8 HIGH Known exploited Published 2026-02-11 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Apple Multiple Buffer Overflow Vulnerability — Apple Multiple Products

Apple iOS, macOS, tvOS, watchOS, and visionOS contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow an attacker with memory write the capability to execute arbitrary code.

Added to KEV
2026-02-12
Remediation due
2026-03-05
Ransomware use
Unknown
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://support.apple.com/en-us/126346 ; https://support.apple.com/en-us/126348 ; https://support.apple.com/en-us/126351 ; https://support.apple.com/en-us/126352 ; https://support.apple.com/en-us/126353 ; https://nvd.nist.gov/vuln/detail/CVE-2026-20700
Status
Analyzed
Published
2026-02-11
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-119

Description

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.

Affected configurations

• apple ipados (< 26.3) • apple iphone os (< 26.3) • apple macos (< 26.3) • apple tvos (< 26.3) • apple visionos (< 26.3) • apple watchos (< 26.3)

Related

Weakness · CWE (1)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References