What is the CVSS score of CVE-2025-43383?

CVE-2025-43383 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L. EPSS exploitation probability: 0.1%.

Which versions of Apple are affected by CVE-2025-43383?

Organizations using An out-of-bounds access should be aware of moderate risk from CVE-2025-43383, a out-of-bounds read vulnerability rated CVSS 4.3.

How to fix or mitigate CVE-2025-43383?

During next maintenance window: Identify affected systems and apply vendor patches when convenient. Monitor vendor channels for patch availability.

Apple CVE-2025-43383

MEDIUM

Out-of-bounds Read (CWE-125)

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

Apple Buffer Overflow Information Disclosure

4.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:20 vuln.today

CVE Published

Nov 04, 2025 - 02:15 nvd

MEDIUM 4.3

DescriptionCVE.org

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in tvOS 26.1, macOS Tahoe 26.1, iOS 26.1 and iPadOS 26.1, iOS 18.7.2 and iPadOS 18.7.2, macOS Sequoia 15.7.2, visionOS 26.1. Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory.

AnalysisAI

An out-of-bounds access issue was addressed with improved bounds checking. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in tvOS 26.1, macOS Tahoe 26.1, iOS 26.1 and iPadOS 26.1, iOS 18.7.2 and iPadOS 18.7.2, macOS Sequoia 15.7.2, visionOS 26.1. Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory. Affected products include: Apple Ipados, Apple Iphone Os, Apple Macos, Apple Tvos, Apple Visionos.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.