CVE-2026-26119
CWE-287Published: February 17, 2026· Updated: Feb 19, 2026
Official Description
Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network.
Technical Analysis
CVE-2026-26119 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.
From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
News & Research Mentioning CVE-2026-26119
Microsoft has disclosed a now-patched security flaw in Windows Admin Center that could allow an attacker to escalate their privileges. Windows Admin Center is a locally deployed, browser-based management tool set that lets users manage their Windows Clients, Servers, and Clusters without the need for connecting to the cloud. The high-severity vulnerability, tracked as CVE-2026-26119, carries a [xlite_meta score:53 src:The Hacker News xlite_fp:b5d5afaedfb892df4c9cd900143927e1083834189b62bfa48806dc8cb9ea11a8]
All References (1)
Quick Facts
Known Threat Actors
Related CVEs (CWE-287)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-26119 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts