Microsoft Windows up to Server 2025 UPnP Device Host untrusted pointer dereference
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.8 | $5k-$25k | 0.00 |
Summary
A vulnerability categorized as critical has been discovered in Microsoft Windows. This affects an unknown function of the component UPnP Device Host. Executing a manipulation can lead to untrusted pointer dereference. This vulnerability is tracked as CVE-2026-27919. The attack is restricted to local execution. No exploit exists. It is advisable to upgrade the affected component.
Details
A vulnerability was found in Microsoft Windows. It has been declared as critical. This vulnerability affects an unknown functionality of the component UPnP Device Host. The manipulation with an unknown input leads to a untrusted pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-822. The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was disclosed 04/14/2026 as confirmed security update guide (Website). The advisory is available at msrc.microsoft.com. This vulnerability was named CVE-2026-27919. The exploitation appears to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 06/01/2026).
Upgrading to version 6.2.9200.26026, 6.3.9600.23132, 10.0.14393.9060, 10.0.17763.8644, 10.0.19044.7184, 10.0.19045.7184, 10.0.20348.5020, 10.0.22631.6936, 10.0.25398.2274, 10.0.26100.32690, 10.0.26200.8246 or 10.0.28000.1836 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1730). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Affected
- Xerox FreeFlow Print Server
Product
Type
Vendor
Name
Version
- 10 21H2
- 10 1607
- 10 1809
- 11 23H2
- 11 24H2
- 11 25H2
- 11 26H1
- Server 2016
- Server 2019
- Server 2022
- Server 2022 23H2
- Server 2025
License
Website
- Vendor: https://www.microsoft.com/
- Product: https://www.microsoft.com/en-us/windows
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 6.8
VulDB Base Score: 7.8
VulDB Temp Score: 6.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
Vendor Base Score (Microsoft): 7.8
Vendor Vector (Microsoft): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Untrusted pointer dereferenceCWE: CWE-822
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Unproven
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒
Upgrade: Windows 6.2.9200.26026/6.3.9600.23132/10.0.14393.9060/10.0.17763.8644/10.0.19044.7184/10.0.19045.7184/10.0.20348.5020/10.0.22631.6936/10.0.25398.2274/10.0.26100.32690/10.0.26200.8246/10.0.28000.1836
Timeline
04/14/2026 VulDB entry created04/14/2026 Advisory disclosed
04/14/2026 Countermeasure disclosed
06/01/2026 VulDB entry last update
Sources
Vendor: microsoft.comProduct: microsoft.com
Advisory: msrc.microsoft.com
Status: Confirmed
CVE: CVE-2026-27919 (🔒)
GCVE (CVE): GCVE-0-2026-27919
GCVE (VulDB): GCVE-100-357442
CERT Bund: WID-SEC-2026-1730 - Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff
scip Labs: https://www.scip.ch/en/?labs.20161215
Entry
Created: 04/14/2026 19:51Updated: 06/01/2026 02:00
Changes: 04/14/2026 19:51 (38), 04/14/2026 19:55 (32), 06/01/2026 02:00 (7)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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