What’s Vulnerable › Vulnerabilities

CVE-2023-27956

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-08 · updated 2026-06-17
• Weakness: CWE-120

Description

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, tvOS 16.4, watchOS 9.4. Processing a maliciously crafted image may result in disclosure of process memory.

Affected products

• Apple iPadOS: before 15.7.4; from 16.0 before 16.4 — fixed in 15.7.4, 16.4
• Apple Iphone Os: before 15.7.4; from 16.0 before 16.4 — fixed in 15.7.4, 16.4
• Apple macOS: from 13.0 before 13.3 — fixed in 13.3
• Apple tvOS: before 16.4 — fixed in 16.4
• Apple watchOS: before 9.4 — fixed in 9.4

How to fix

Upgrade to a fixed version: Apple iPadOS 15.7.4, 16.4; Apple Iphone Os 15.7.4, 16.4; Apple macOS 13.3; Apple tvOS 16.4; Apple watchOS 9.4. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT213670
• https://support.apple.com/en-us/HT213673
• https://support.apple.com/en-us/HT213674
• https://support.apple.com/en-us/HT213676
• https://support.apple.com/en-us/HT213678
• https://support.apple.com/en-us/HT213670
• https://support.apple.com/en-us/HT213673
• https://support.apple.com/en-us/HT213674
• https://support.apple.com/en-us/HT213676
• https://support.apple.com/en-us/HT213678

Get alerted when CVE-2023-27956 or the next vulnerability affects your stack