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CVE-2026-27919

Windows UPnP Device Host Elevation of Privilege Vulnerability

No known exploitation. EPSS puts it in the 25th percentile. Fixed versions are out.

CVSS 3.17.8HighEPSS percentile25th0.3% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix5 products10 fixed builds listed below

Published Updated Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Microsoft Windows 10 Version 1607Affected: ≥ 10.0.14393.0, < 10.0.14393.9060Upgrade to: 10.0.14393.9060Affected: ≥ 10.0.17763.0, < 10.0.17763.8644Upgrade to: 10.0.17763.8644Affected: ≥ 10.0.19044.0, < 10.0.19044.7184Upgrade to: 10.0.19044.7184Affected: ≥ 10.0.19045.0, < 10.0.19045.7184Upgrade to: 10.0.19045.7184Stated by: CVE record
  • Microsoft Windows 11 version 23H2Affected: ≥ 10.0.22631.0, < 10.0.22631.6936Upgrade to: 10.0.22631.6936Affected: ≥ 10.0.26100.0, < 10.0.26100.8246Upgrade to: 10.0.26100.8246Affected: ≥ 10.0.26200.0, < 10.0.26200.8246Upgrade to: 10.0.26200.8246Affected: ≥ 10.0.28000.0, < 10.0.28000.1836Upgrade to: 10.0.28000.1836Stated by: CVE record
  • Microsoft Windows Server 2012Affected: ≥ 6.2.9200.0, < 6.2.9200.26026Upgrade to: 6.2.9200.26026Stated by: CVE record
  • Microsoft Windows Server 2012 R2Affected: ≥ 6.3.9600.0, < 6.3.9600.23132Upgrade to: 6.3.9600.23132Stated by: CVE record
  • Microsoft Windows Server 2016Affected: ≥ 10.0.14393.0, < 10.0.14393.9060Upgrade to: 10.0.14393.9060Stated by: CVE record

Versions as the sources state them. 3 more products have version data. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS25th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.3% chance of exploitation activity in the next 30 days, which ranks it in the 25th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

7 events over 183 days, from the signal feeds we watch.

  1. Patch availablerecord updated
  2. OpenVAS check added
  3. Patch availablerecord updated
  4. Publishedweakness classified

Affected products

And 49 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Scored 7.8 by NVD.

How it is reached

  • Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required LowRequires basic user-level privileges
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

Sources

References in the record

Watch the software you run.

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We'll flag the next CVE, public exploit or patch for Windows 10 Version 1607, not every advisory.