What is the CVSS score of CVE-2025-43312?

CVE-2025-43312 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Apple are affected by CVE-2025-43312?

Organizations using A buffer overflow should be aware of moderate risk from CVE-2025-43312, a buffer overflow vulnerability rated CVSS 5.5.

How to fix or mitigate CVE-2025-43312?

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

Apple CVE-2025-43312

MEDIUM

Classic Buffer Overflow (CWE-120)

2025-09-15 product-security@apple.com

Buffer Overflow Apple

5.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:12 vuln.today

CVE Published

Sep 15, 2025 - 23:15 nvd

MEDIUM 5.5

DescriptionCVE.org

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sonoma 14.8, macOS Sequoia 15.7. An app may be able to cause unexpected system termination.

AnalysisAI

A buffer overflow was addressed with improved bounds checking. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sonoma 14.8, macOS Sequoia 15.7. An app may be able to cause unexpected system termination. Affected products include: Apple Macos.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.