What is the CVSS score of CVE-2026-20609?

CVE-2026-20609 has a CVSS 3.1 base score of 4.4 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L. EPSS exploitation probability: 0.0%.

Which versions of Apple are affected by CVE-2026-20609?

Organizations using The should be aware of moderate risk from CVE-2026-20609, a out-of-bounds read vulnerability rated CVSS 4.4. Exploitation could cause memory corruption or application crashes.

How to fix or mitigate CVE-2026-20609?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Apple CVE-2026-20609

MEDIUM

Out-of-bounds Read (CWE-125)

2026-02-11 product-security@apple.com

Apple Buffer Overflow Information Disclosure

4.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.4 MEDIUM

AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

CVE Published

Feb 11, 2026 - 23:16 nvd

MEDIUM 4.4

DescriptionCVE.org

The issue was addressed with improved memory handling. This issue is fixed in watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, macOS Sonoma 14.8.4, macOS Sequoia 15.7.4, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3. Processing a maliciously crafted file may lead to a denial-of-service or potentially disclose memory contents.

AnalysisAI

Memory handling vulnerabilities across Apple's macOS, iOS, and iPadOS platforms allow local attackers to trigger denial-of-service conditions or leak sensitive memory contents by processing specially crafted files. The vulnerability requires user interaction and local access, affecting multiple OS versions with patches available across the Apple ecosystem. CVSS 4.4 (Medium) severity reflects the limited attack surface and lack of remote exploitability.

Technical ContextAI

Classified as CWE-125 (Out-of-bounds Read). Affects Ipados. The issue was addressed with improved memory handling. This issue is fixed in watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, macOS Sonoma 14.8.4, macOS Sequoia 15.7.4, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3. Processing a maliciously crafted file may lead to a denial-of-service or potentially disclose memory contents.