CVE-2026-56185: Improper authentication in Windows Admin Center allows an authorized attacker to disclose information over a n

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MEDIUM 6.5WATCHLISTUPGRADE

CVE-2026-56185 is a medium-severity flaw (CVSS 6.5) affecting windows admin center. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper authentication in Windows Admin Center allows an authorized attacker to disclose information over a network.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 42%)
CISA exploited list	No
Weakness	CWE-94, CWE-287
Published	2026-07-14
Last modified	2026-10-24

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-14 17:17 UTCPublished CVE record published
2026-10-24 21:10 UTCUpdated Record last modified

microsoft windows admin center UPGRADE

Affected: >= 1809 and < 2511

Fixed in: 2511

Safe to downgrade to: a release before 1809

1. Check installed version

apt-cache policy windows-admin-center || rpm -q windows-admin-center || windows-admin-center --version

2. UPGRADE to 2511 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade windows-admin-center

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade windows-admin-center

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1809 (Debian / Ubuntu)

apt-cache madison windows-admin-center sudo apt install windows-admin-center=<VERSION_BEFORE_1809> sudo apt-mark hold windows-admin-center

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list windows-admin-center sudo dnf downgrade windows-admin-center-<VERSION_BEFORE_1809> sudo dnf versionlock add windows-admin-center

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-56185?

windows admin center: upgrade to 2511. Exact commands for each OS are on this page.

Is CVE-2026-56185 being exploited?

CVE-2026-56185 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-56185 affect?

CVE-2026-56185 affects windows admin center. Severity is medium (CVSS 6.5). Improper authentication in Windows Admin Center allows an authorized attacker to disclose information over a network.

How urgent is CVE-2026-56185?

Priority 42/100. On your watchlist

Software pages

Windows vulnerabilities

Related CVEs

CVE-2026-56196 HIGH 8.8 UPGRADE Relative path traversal in Windows Admin Center allows an authorized attacker to execute code over a network.
CVE-2026-56197 HIGH 8.8 UPGRADE Improper neutralization of special elements used in a command ('command injection') in Windows Admin Center al
CVE-2026-56169 HIGH 8.1 UPGRADE Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a net
CVE-2026-57107 HIGH 7.8 UPGRADE Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges locally.
CVE-2026-58631 HIGH 7.8 UPGRADE Improper authorization in Windows Admin Center allows an authorized attacker to execute code locally.

References

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