#VU105568 Improper Authentication in ASP.NET Core and Visual Studio - CVE-2025-24070

Vulnerability identifier: #VU105568

Vulnerability risk: High

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-24070

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ASP.NET Core
Universal components / Libraries / Software for developers
Visual Studio
Universal components / Libraries / Software for developers

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to weak authentication in ASP.NET Core and Visual Studio. A remote attacker can bypass authentication process and gain the privileges of the compromised user.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ASP.NET Core: 8.0 - 8.0.13

Visual Studio: 17.1.0 17.1.32210.238 - 17.10.11 17.10.11, 17.8.0 17.8.34309.116 - 17.8.18 17.8.18

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External links
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24070

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.