Weak Password Recovery Mechanism for Forgotten Password in Visual Studio and ASP.NET Core - CVE-2026-70175
Published: October 14, 2026
Vulnerability identifier: #VU154619
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-70175
CWE-ID: CWE-640
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to escalate privileges and take over a targeted account.
The vulnerability exists due to a weak password recovery mechanism in ASP.NET Core when processing password reset requests. A remote attacker can submit a password reset request using a specially crafted email address that is treated as equivalent to another account to escalate privileges and take over a targeted account.
No user interaction is required. Successful exploitation requires a deep understanding of the system and the ability to manipulate its components to trigger a specific condition.
Affected software
Visual Studio
ASP.NET Core
ASP.NET Core
How to mitigate CVE-2026-70175
Install security update from vendor's website.
Visual Studio - update to 17.14.42
ASP.NET Core - addressed in versions 8.0.32, 9.0.21
ASP.NET Core - addressed in versions 8.0.32, 9.0.21