CVE-2024-43477Network attack vector

Cross-tenant Verifiable ID service interruption

Published Aug 23, 2024 · Updated Jul 10, 2025

Improper access control in Microsoft Entra Decentralized Identity Services allows remote attackers to disable another tenant's Verifiable IDs. Microsoft has not published the affected request, endpoint, or access-control check that accepts the cross-tenant operation. No authentication or user interaction is required, and the reported consequence is interruption of the target tenant's Verifiable ID service.

CVSS severity7.5
High
EPSS probability1.04%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Microsoft Entra Decentralized Identity Services allows remote attackers to disable another tenant's Verifiable IDs. Microsoft has not published the affected request, endpoint, or access-control check that accepts the cross-tenant operation. No authentication or user interaction is required, and the reported consequence is interruption of the target tenant's Verifiable ID service.

The record

CVE
CVE-2024-43477
Published
Aug 23, 2024
Updated
Jul 10, 2025
Vendor
Microsoft
Product
Microsoft Entra
Classifications
CWE-284, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=N/A

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Entraversion=N/A

Published CVSS scores

7.5Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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