Entra Private Network Connector: Information disclosure vulnerability
Summary
The Microsoft Entra Private Network Connector, the on-premises component used with Microsoft Entra Private Access, contains a flaw that exposes sensitive information to unauthorized actors (CWE-200). A local attacker with low privileges on the connector host can disclose information, which according to Microsoft's advisory may include credentials. The flaw cannot be exploited remotely and requires no internet exposure. No exploitation or public proof of concept is known.
Affected
- Microsoft Entra Private Network Connector 1.5.4892.0 up to, but not including, 1.5.5130.0
Fixed in
- Version 1.5.5130.0 or later
- Released with the November 2026 Patch Tuesday. The KB article and download are linked on the MSRC page; not verified here.
Workaround
Unknown.
Exploitation
- Not known to be exploited in the wild.
- Not listed in CISA KEV.
- No public proof of concept found; public disclosure recorded as No.
Our recommendation
- Update all Entra Private Network Connector hosts to 1.5.5130.0 or later, verifying the KB article and download on the MSRC page first.
- Restrict local logon on connector hosts to administrators and treat them as sensitive servers.
- Record the connector version in your asset inventory and check whether automatic updates are enabled.
Information from Microsoft (Patch Tuesday November 2026)
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Microsoft Security Update Guide: CVE-2026-109460 msrc.microsoft.com
- CVE Record: CVE-2026-109460 www.cve.org
- Strix: CVE-2026-109460 www.strix.ai
- Rapid7: Patch Tuesday November 2026 (EM) www.rapid7.com
- BleepingComputer: Microsoft November 2026 Patch Tuesday www.bleepingcomputer.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 16:56.
Original description (NVD)
Exposure of sensitive information to an unauthorized actor in Microsoft Entra Private Network Connector allows an authorized attacker to disclose information locally.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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