CVE-2019-9548: Citrix Application Delivery Management (ADM) 12.1.x before 12.1.50.33 has Incorrect Access Control.

This month

CRITICAL 10.0REMOTEUPGRADE

CVE-2019-9548 is a critical-severity flaw (CVSS 10.0) affecting application delivery management. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Citrix Application Delivery Management (ADM) 12.1.x before 12.1.50.33 has Incorrect Access Control.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Published	2019-06-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: citrix

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-06-05 17:29 UTCPublished CVE record published
2026-06-17 02:43 UTCUpdated Record last modified

citrix application delivery management UPGRADE

Affected: >= 12.1 and <= 12.1.50.33 · >= 13.0 and <= 13.0.33.23

Fixed in: newer than 13.0.33.23

Safe to downgrade to: a release before 12.1

1. Check installed version

apt-cache policy application-delivery-management || rpm -q application-delivery-management || application-delivery-management --version

2. UPGRADE to newer than 13.0.33.23 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade application-delivery-management

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade application-delivery-management

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 12.1 (Debian / Ubuntu)

apt-cache madison application-delivery-management sudo apt install application-delivery-management=<VERSION_BEFORE_12.1> sudo apt-mark hold application-delivery-management

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

dnf --showduplicates list application-delivery-management sudo dnf downgrade application-delivery-management-<VERSION_BEFORE_12.1> sudo dnf versionlock add application-delivery-management

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-2019-9548?

application delivery management: upgrade to newer than 13.0.33.23. Exact commands for each OS are on this page.

Is CVE-2019-9548 being exploited?

CVE-2019-9548 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-2019-9548 affect?

CVE-2019-9548 affects application delivery management. Severity is critical (CVSS 10.0). Citrix Application Delivery Management (ADM) 12.1.x before 12.1.50.33 has Incorrect Access Control.

How urgent is CVE-2019-9548?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Citrix vulnerabilities

Related CVEs

CVE-2022-27512 MEDIUM 5.3 UPGRADE Temporary disruption of the ADM license service
CVE-2022-27511 HIGH 8.1 UPGRADE Corruption of the system by a remote, unauthenticated user
CVE-2021-22920 MEDIUM 6.5 DOWNGRADE DOWNGRADE A vulnerability has been discovered in Citrix ADC (formerly known as NetScaler ADC) and Citrix Gateway (former
CVE-2019-17366 HIGH 8.8 DOWNGRADE Citrix Application Delivery Management (ADM) 12.1 before build 54.13 has Incorrect Access Control.

References

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