CVE-2022-23031Network attack vector

Authenticated file disclosure via TMUI XXE

Published Jan 25, 2022 · Updated Aug 3, 2024

XXE in F5 BIG-IP FPS, ASM, and Advanced WAF allows remote authenticated users to read local files through the TMUI. F5 has not disclosed the affected page or parser path; the page resolves external entity URIs from attacker-supplied XML into local file reads and outbound HTTP requests. Exploitation requires high-privilege TMUI authentication and affects 16.1.x before 16.1.1, 15.1.x before 15.1.4, and 14.1.x before 14.1.4.4.

CVSS severity4.9
Medium
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in F5 BIG-IP FPS, ASM, and Advanced WAF allows remote authenticated users to read local files through the TMUI. F5 has not disclosed the affected page or parser path; the page resolves external entity URIs from attacker-supplied XML into local file reads and outbound HTTP requests. Exploitation requires high-privilege TMUI authentication and affects 16.1.x before 16.1.1, 15.1.x before 15.1.4, and 14.1.x before 14.1.4.4.

The record

CVE
CVE-2022-23031
Published
Jan 25, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-611, T1005
Attack vector
network
Privileges
admin

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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1005Data from Local System

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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