CVE-2026-26123
Received
Received - Intake
Information Disclosure in Microsoft Authenticator via Local Unauthorized Access
Publication date: 2026-03-10
Last updated on: 2026-03-13
Assigner: Microsoft Corporation
Description
Description
Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally.
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | authenticator | to 6.2511.7533 (exc) |
| microsoft | authenticator | to 6.8.40 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-939 | The product uses a handler for a custom URL scheme, but it does not properly restrict which actors can invoke the handler using the scheme. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in Microsoft Authenticator and allows an unauthorized attacker to locally disclose information. It is categorized under a CWE that is not included in the root cause analysis categories.
How can this vulnerability impact me? :
The vulnerability can lead to local information disclosure by an unauthorized attacker. This means sensitive information stored or accessible through Microsoft Authenticator could be exposed without proper authorization.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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