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Critical· 9.8

CVE-2021-32088

Quest KACE Systems Deployment Appliance (SMA) 11.0.273 contains a critical flaw that lets attackers bypass API rate limiting by removing the kboxid cookie. This allows unlimited requests to the API, potentially leading to denial of service or brute‑force attacks. The vulnerability is rated CVSS 9.8.

publishedJul 27, 2026
last modifiedJul 28, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
22th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 11, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

Quest KACE Systems Deployment Appliance (SMA) version 11.0.273. Users running this version are affected.

02

Real-world impact

An attacker could send unlimited requests to the API, potentially causing denial of service or enabling brute‑force attacks against the system.

03

Why this severity

The CVSS score is high because the flaw allows attackers to bypass security controls without authentication, giving them full control over confidentiality, integrity, and availability of the affected system.

04

What to do about it

no official fix yet

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

No fix documented in sources

05

Timeline

06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
CVE-2021-32088: Quest KACE Systems Deployment Appliance (SMA) 11.0.273 contains a crit · Vulnary