Affects Windows Admin Center; widely used admin tool; privilege escalation could disrupt IT ops.
CVE-2026-26119
Privilege escalation via improper authentication in Windows Admin Center.
Is CVE-2026-26119 being exploited?
Not confirmed. CVE-2026-26119 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 1.2% probability of exploitation in the next 30 days.
How severe is CVE-2026-26119?
CVE-2026-26119 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-26119?
Yes. A fix has been recorded for CVE-2026-26119. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-26119 affect?
CVE-2026-26119 affects Windows Admin Center. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-26119?
Patch when released; enforce least privilege and restrict Admin Center access.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authorized attacker with valid credentials can elevate privileges over the network using the auth flaw.
Patch when possible
- affected>= 1809.0 and < 2.6.4
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.