What is the CVSS score of CVE-2025-43447?

CVE-2025-43447 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Apple are affected by CVE-2025-43447?

Organizations using The should be aware of moderate risk from CVE-2025-43447, a out-of-bounds write vulnerability rated CVSS 5.5. Exploitation could cause memory corruption or application crashes.

How to fix or mitigate CVE-2025-43447?

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

Apple CVE-2025-43447

MEDIUM

Out-of-bounds Write (CWE-787)

2025-11-04 product-security@apple.com

Memory Corruption Apple Buffer Overflow

5.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:20 vuln.today

CVE Published

Nov 04, 2025 - 02:15 nvd

MEDIUM 5.5

DescriptionCVE.org

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.1 and iPadOS 26.1, watchOS 26.1, macOS Tahoe 26.1, visionOS 26.1. An app may be able to cause unexpected system termination or corrupt kernel memory.

AnalysisAI

The issue was addressed with improved memory handling. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. The issue was addressed with improved memory handling. This issue is fixed in iOS 26.1 and iPadOS 26.1, watchOS 26.1, macOS Tahoe 26.1, visionOS 26.1. An app may be able to cause unexpected system termination or corrupt kernel memory. Affected products include: Apple Ipados, Apple Iphone Os, Apple Visionos, Apple Watchos.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).