CVE-2022-23032Network attack vector

Data disclosure via DNS rebinding

Published Jan 25, 2022 · Updated Aug 3, 2024

DNS rebinding in F5 BIG-IP Edge Client before 7.2.1.4 allows remote attackers to expose unspecified client data during connection. F5 has not disclosed the affected client component or how it validates DNS results or request origins. Exposure requires proxy settings in the BIG-IP APM network access resource and occurs when a Windows or macOS client connects; the published impact is limited to confidentiality.

CVSS severity5.3
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DNS rebinding in F5 BIG-IP Edge Client before 7.2.1.4 allows remote attackers to expose unspecified client data during connection. F5 has not disclosed the affected client component or how it validates DNS results or request origins. Exposure requires proxy settings in the BIG-IP APM network access resource and occurs when a Windows or macOS client connects; the published impact is limited to confidentiality.

The record

CVE
CVE-2022-23032
Published
Jan 25, 2022
Updated
Aug 3, 2024
Vendor
F5 Networks
Product
BIG-IP Edge Client
Classifications
CWE-346
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 25, 2022CVE 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?

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

  1. Affected versionversion=All versions before 7.2.1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

F5 Networks · BIG-IP Edge Clientversion=All versions before 7.2.1.4

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-346Origin Validation Error

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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