CVE-2021-23026Network attack vector

Authenticated actions via iControl SOAP CSRF

Published Sep 14, 2021 · Updated Aug 3, 2024

Cross-site request forgery in F5 BIG-IP and BIG-IQ through iControl SOAP allows remote attackers to perform actions as a logged-in user. The iControl SOAP endpoint accepts state-changing requests without adequate CSRF protections, allowing a malicious web page to induce a victim's browser to submit SOAP operations. Exploitation requires a victim authenticated to the management interface and can alter configuration or disclose and disrupt system operations.

CVSS severity8.8
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in F5 BIG-IP and BIG-IQ through iControl SOAP allows remote attackers to perform actions as a logged-in user. The iControl SOAP endpoint accepts state-changing requests without adequate CSRF protections, allowing a malicious web page to induce a victim's browser to submit SOAP operations. Exploitation requires a victim authenticated to the management interface and can alter configuration or disclose and disrupt system operations.

The record

CVE
CVE-2021-23026
Published
Sep 14, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NISTCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NISTAV:N/AC:M/Au:N/C:P/I:P/A:P

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

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1189Drive-by Compromise

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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