← Vulnerability feed

Vulnerability record · CVE-2026-27928 · published 14 April 2026

CVE-2026-27928: Microsoft windows server 2016 improper input validation vulnerability

Microsoft · Windows Server 2016

Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network.

8.7 CVSS 3.1 High EPSS 0.71% · top 48.5% CWE-20 · Improper input validation
8.7CVSS 3.1 base score
0.71%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network.

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

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27928 Vendor Advisory

Track CVE-2026-27928 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2020-1350Windows DNS Server improper input validation remote code executionWindows DNS servers fail to properly handle certain requests, allowing remote code execution. The flaw is network-reachable, needs no authentication …KEVEPSS 97%analysed9.8CVE-2026-33824Double free in Windows IKE Extension enables remote code executionA double free flaw (CWE-415) exists in the Windows IKE Extension, reachable over the network by an unauthenticated attacker. Successful exploitation …KEVEPSS 1.6%analysed9.8CVE-2025-59287Microsoft WSUS deserialization flaw allows unauthenticated remote code executionWindows Server Update Service (WSUS) deserializes untrusted data, letting an unauthenticated network attacker run code on the server. The flaw is rat…KEVEPSS 100%analysed9.8CVE-2017-8543Windows Search memory handling flaw allows remote code executionWindows Search fails to properly handle objects in memory, allowing an unauthenticated remote attacker to execute code on affected Windows systems. T…KEVEPSS 74%analysed9.0CVE-2020-1040Microsoft Hyper-V RemoteFX vGPU input validation remote code executionHyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system, allowing remote code …KEVEPSS 7.4%analysed8.8CVE-2026-21510Windows Shell protection mechanism failure allows security feature bypassWindows Shell contains a protection mechanism failure (CWE-693) that lets an unauthorized attacker bypass a security feature over a network. The flaw…KEVEPSS 24%analysed8.8CVE-2026-21513Microsoft MSHTML security feature bypass on WindowsCVE-2026-21513 is a protection mechanism failure (CWE-693) in the Microsoft MSHTML Framework that lets an unauthorized attacker bypass a security fea…KEVEPSS 16%analysed8.8CVE-2025-33073Windows SMB improper access control allows privilege elevationWindows SMB contains an improper access control flaw (CWE-284) that lets an authorized attacker elevate privileges over the network. Microsoft rates …KEVEPSS 83%analysed

Source: NIST National Vulnerability Database (record CVE-2026-27928), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.