CVE-2021-36310Network attack vector

Service interruption via API resource exhaustion

Published Nov 20, 2021 · Updated Sep 17, 2024

Uncontrolled resource consumption in the API service of Dell SmartFabric OS10 allows remote authenticated users to interrupt service. The API service fails to bound resource consumption, but Dell has not published the request, resource, or operation that triggers exhaustion. Exploitation requires a high-privileged API account and can interrupt availability of the affected switch.

CVSS severity4.9
Medium
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in the API service of Dell SmartFabric OS10 allows remote authenticated users to interrupt service. The API service fails to bound resource consumption, but Dell has not published the request, resource, or operation that triggers exhaustion. Exploitation requires a high-privileged API account and can interrupt availability of the affected switch.

The record

CVE
CVE-2021-36310
Published
Nov 20, 2021
Updated
Sep 17, 2024
Vendor
Dell
Product
Dell SmartFabric OS10
Classifications
CWE-693, CWE-400, T1499
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <10.5.3.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Dell · Dell SmartFabric OS10version=unspecified <10.5.3.4

Published CVSS scores

4.9DellCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
6.8NISTAV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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