CVE-2024-27086

MSAL.NET applications targeting Xamarin Android and .NET Android (MAUI) susceptible to local denial of service

LOW
3.9
CVSS Score
Published: April 16, 2024 at 09:34 PM UTC
Updated: June 17, 2026 at 07:19 AM UTC
1 product affected across 1 vendorMicrosoft Authentication Library for .NET

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Severity
LOW3.9
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

The MSAL library enabled acquisition of security tokens to call protected APIs. MSAL.NET applications targeting Xamarin Android and .NET Android (e.g., MAUI) using the library from versions 4.48.0 to 4.60.0 are impacted by a low severity vulnerability. A malicious application running on a customer Android device can cause local denial of service against applications that were built using MSAL.NET for authentication on the same device (i.e., prevent the user of the legitimate application from logging in) due to incorrect activity export configuration. MSAL.NET version 4.60.1 includes the fix. As a workaround, a developer may explicitly mark the MSAL.NET activity non-exported.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.59.1v < 4.60.3
Affected range stops below 4.59.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.60.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.9LOWGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-863CWE-926

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