CVE-2025-64655Network attack vector

Privilege escalation via undisclosed authorization failure

Published Nov 20, 2025 · Updated Feb 26, 2026

Improper authorization in Microsoft Dynamics OmniChannel SDK Storage Containers allows remote attackers to elevate privileges over a network. Microsoft identifies the affected locus only as the hosted storage-container service and has not disclosed the authorization check or request operation that fails. Exploitation requires user interaction but no prior privileges, and elevated access can expose or alter hosted data and interrupt service.

CVSS severity8.8
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Microsoft Dynamics OmniChannel SDK Storage Containers allows remote attackers to elevate privileges over a network. Microsoft identifies the affected locus only as the hosted storage-container service and has not disclosed the authorization check or request operation that fails. Exploitation requires user interaction but no prior privileges, and elevated access can expose or alter hosted data and interrupt service.

The record

CVE
CVE-2025-64655
Published
Nov 20, 2025
Updated
Feb 26, 2026
Vendor
Microsoft
Product
Dynamics OmniChannel SDK Storage Containers
Classifications
CWE-285, T1068
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=-

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Dynamics OmniChannel SDK Storage Containersversion=-

Published CVSS scores

8.8Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-285Improper Authorization
T1068Exploitation for Privilege Escalation

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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