What is CVE-2026-50528?

CVE-2026-50528 is a high-severity vulnerability in Apple macOS, classified under Authentication Bypass by Assumed-Immutable Data. CVSS score: 8.2/10. Published 2026-07-14.

How severe is CVE-2026-50528?

High severity. CVSS v3 base score is 8.2 out of 10.

Auth bypass in Apple macOS

CVE-2026-50528

Incorrect authorization in .NET allows an unauthorized attacker to bypass a security feature over a network.

Published 2026-07-14 · last modified 2026-07-22.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (47.7th percentile), scored 2026-10-13.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Apple macOS
Linux Kernel
Microsoft Visual Studio 2022 Version 17.12 — versions 17.12.0
Microsoft Visual Studio 2022 Version 17.14 — versions 17.14.0
Microsoft Visual Studio 2026 Version 18.7 — versions 18.0
Microsoft .Net
Microsoft .Net 10.0 — versions 10.0.0
Microsoft .Net 8.0 — versions 8.0.0
Microsoft .Net 9.0 — versions 9.0.0
Microsoft Visual Studio 2022

Weakness classification (CWE)

References

.NET Security Feature Bypass Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-50528?: CVE-2026-50528 is a high-severity vulnerability in Apple macOS, classified under Authentication Bypass by Assumed-Immutable Data. CVSS score: 8.2/10. Published 2026-07-14.
How severe is CVE-2026-50528?: High severity. CVSS v3 base score is 8.2 out of 10.