🛡️ CVE-2026-43738 — macos

🟡 CVSS 5.5 — Medium ✅ No Known Exploit CWE-125 NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. Processing a maliciously crafted asset catalog may result in disclosure of process memory.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2026-43738 is classified as CWE-125: Out-of-bounds Read. The code reads past the limits of a buffer, exposing adjacent memory contents or crashing the process.

Affected software

CVE-2026-43738 is recorded against 1 package.

  • macos (from 15.0 up to 15.7.8)

Timeline and source

Published on 27 July 2026 and last revised on 28 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

support.apple.com
support.apple.com

Details

Severity MEDIUM
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE CWE-125
Public Exploit ✅ No
Source NVD
Published 2026-07-27
Updated 2026-08-11
Modified 2026-07-28
Fix URL N/A

Affected Packages

Software From version Fixed in
macos 15.0 15.7.8

References

Release Notes, Vendor Advisory https://support.apple.com/en-us/128071
Release Notes, Vendor Advisory https://support.apple.com/en-us/128072

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