Vulnerability in Apple macOS
CVE-2026-47300
Incorrect implementation of authentication algorithm in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
EPSS: 0.005 (42.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apple Macos
- Linux 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
- ASP.NET Core Elevation of Privilege Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-47300?
- CVE-2026-47300 is a high-severity vulnerability in Apple macOS, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 8.8/10. Published 2026-07-14.
- How severe is CVE-2026-47300?
- High severity. CVSS v3 base score is 8.8 out of 10.