CVE-2021-32084: An issue was discovered in Quest KACE Systems Deployment Appliance (SMA) 11.0.273

This month

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-32084 is a critical-severity flaw (CVSS 9.8) affecting kace systems management appliance. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Quest KACE Systems Deployment Appliance (SMA) 11.0.273. If a customer restricts access to the web console by IP address or subnets, the API endpoints are not restricted. If credentials/API keys are known to an attacker, the appliance can still be accessed via the API, leading to a potential compromise of the entire environment that is configured for KACE.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-07-27
Last modified	2026-08-03

Publisher (CNA): MITRE · Vendor: quest

Last updated 2026-08-03 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-27 22:16 UTCPublished CVE record published
2026-08-03 14:31 UTCUpdated Record last modified

quest kace systems management appliance DOWNGRADE

Affected: 11.0.273

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.0.273

1. Check installed version

apt-cache policy kace-systems-management-appliance || rpm -q kace-systems-management-appliance || kace-systems-management-appliance --version

2. No fixed release: DOWNGRADE to a release before 11.0.273 (Debian / Ubuntu)

apt-cache madison kace-systems-management-appliance sudo apt install kace-systems-management-appliance=<VERSION_BEFORE_11.0.273> sudo apt-mark hold kace-systems-management-appliance

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list kace-systems-management-appliance sudo dnf downgrade kace-systems-management-appliance-<VERSION_BEFORE_11.0.273> sudo dnf versionlock add kace-systems-management-appliance

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-2021-32084?

kace systems management appliance: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-32084 being exploited?

CVE-2021-32084 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-2021-32084 affect?

CVE-2021-32084 affects kace systems management appliance. Severity is critical (CVSS 9.8). An issue was discovered in Quest KACE Systems Deployment Appliance (SMA) 11.0.273. If a customer restricts access to the web console by IP address or subnets, the API endpoints are not restricted. If credentials/API keys are known to an att

How urgent is CVE-2021-32084?

Priority 51/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-32087 HIGH 8.8 DOWNGRADE An issue was discovered in Quest KACE Systems Deployment Appliance (SMA) 11.0.273
CVE-2021-32085 HIGH 8.8 DOWNGRADE An issue was discovered in Quest KACE Systems Deployment Appliance (SMA) 11.0.273
CVE-2021-32086 CRITICAL 9.8 DOWNGRADE An issue was discovered in Quest KACE Systems Deployment Appliance (SMA) 11.0.273
CVE-2021-32088 CRITICAL 9.8 DOWNGRADE An issue was discovered in Quest KACE Systems Deployment Appliance (SMA) 11.0.273

References

← Back to latest CVEs