CVE-2022-33203Network attack vector

Service interruption via resource-consuming requests

Published Aug 4, 2022 · Updated Sep 17, 2024

Resource exhaustion in F5 BIG-IP Access Policy Manager allows remote attackers to interrupt service via undisclosed requests. With Service Connect enabled in an APM access policy on a virtual server, TMM processing of those requests increases memory utilization. The condition affects 14.1.x before 14.1.5, 15.1.x before 15.1.6.1, and 16.1.x before 16.1.3; request details and the precise failure mode are undisclosed.

CVSS severity7.5
High
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in F5 BIG-IP Access Policy Manager allows remote attackers to interrupt service via undisclosed requests. With Service Connect enabled in an APM access policy on a virtual server, TMM processing of those requests increases memory utilization. The condition affects 14.1.x before 14.1.5, 15.1.x before 15.1.6.1, and 16.1.x before 16.1.3; request details and the precise failure mode are undisclosed.

The record

CVE
CVE-2022-33203
Published
Aug 4, 2022
Updated
Sep 17, 2024
Vendor
F5 Networks
Product
BIG-IP Access Policy Manager
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 4, 2022CVE 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=14.1.x <14.1.5
  2. Affected versionversion=15.1.x <15.1.6.1
  3. Affected versionversion=16.1.x <16.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

F5 Networks · BIG-IP Access Policy Managerversion=14.1.x <14.1.5; version=15.1.x <15.1.6.1; version=16.1.x <16.1.3

Published CVSS scores

7.5F5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

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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