CVE-2021-20533

Authenticated command execution via crafted request

Published Jul 15, 2021 · Updated Sep 16, 2024

Command injection in IBM Security Verify Access Docker 10.0.0 allows remote authenticated users to execute arbitrary system commands. IBM has not disclosed the affected request handler, parameter, or operation that passes crafted request data to a command interpreter. Exploitation requires high-privilege authentication and adjacent-network access and grants command execution in the container's security context.

CVSS severity8.4
High
EPSS probability1.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in IBM Security Verify Access Docker 10.0.0 allows remote authenticated users to execute arbitrary system commands. IBM has not disclosed the affected request handler, parameter, or operation that passes crafted request data to a command interpreter. Exploitation requires high-privilege authentication and adjacent-network access and grants command execution in the container's security context.

The record

CVE
CVE-2021-20533
Published
Jul 15, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Security Verify Access Docker
Classifications
T1059
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 15, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=10.0.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

IBM · IBM Security Verify Access Dockerversion=10.0.0

Published CVSS scores

8.4IBMCVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1059Command and Scripting Interpreter

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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