CVE-2023-28300Network attack vector

Authenticated security feature bypass

Published Apr 11, 2023 · Updated Jan 23, 2025

Improper access control in Microsoft Azure Service Connector before 0.3.0 allows remote authenticated users to bypass a security feature. Microsoft's public advisory and CNA record do not disclose the affected operation or explain how untrusted input defeats the access-control check. Network access, low privileges, and high attack complexity are prerequisites; successful exploitation affects connected-resource confidentiality, integrity, and availability.

CVSS severity7.5
High
EPSS probability0.98%
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 Azure Service Connector before 0.3.0 allows remote authenticated users to bypass a security feature. Microsoft's public advisory and CNA record do not disclose the affected operation or explain how untrusted input defeats the access-control check. Network access, low privileges, and high attack complexity are prerequisites; successful exploitation affects connected-resource confidentiality, integrity, and availability.

The record

CVE
CVE-2023-28300
Published
Apr 11, 2023
Updated
Jan 23, 2025
Vendor
Microsoft
Product
Azure Service Connector
Classifications
CWE-284
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 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=0.0.0 <0.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Azure Service Connectorversion=0.0.0 <0.3.0

Published CVSS scores

7.5Microsoft CorporationCVSS:3.1/AV:N/AC:H/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control

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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