CVE-2022-29473Network attack vector

Service interruption via undisclosed IPsec ALG responses

Published May 5, 2022 · Updated Sep 16, 2024

Denial of service in the IPsec ALG of F5 BIG-IP allows remote attackers to interrupt TMM traffic processing via undisclosed responses. TMM improperly handles an exceptional response condition in IPsec ALG processing and terminates; F5 has not disclosed the response format or code path. Affected deployments run BIG-IP 13.1.x before 13.1.5, 14.1.x before 14.1.4.6, or 15.1.x before 15.1.5.1 with an IPsec ALG profile on a virtual server.

CVSS severity5.9
Medium
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in the IPsec ALG of F5 BIG-IP allows remote attackers to interrupt TMM traffic processing via undisclosed responses. TMM improperly handles an exceptional response condition in IPsec ALG processing and terminates; F5 has not disclosed the response format or code path. Affected deployments run BIG-IP 13.1.x before 13.1.5, 14.1.x before 14.1.4.6, or 15.1.x before 15.1.5.1 with an IPsec ALG profile on a virtual server.

The record

CVE
CVE-2022-29473
Published
May 5, 2022
Updated
Sep 16, 2024
Vendor
F5 Networks
Product
BIG-IP
Classifications
CWE-754, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 5, 2022CVE 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=13.1.x <13.1.5
  2. Affected versionversion=14.1.x <14.1.4.6
  3. Affected versionversion=15.1.x <15.1.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

F5 Networks · BIG-IPversion=13.1.x <13.1.5; version=14.1.x <14.1.4.6; version=15.1.x <15.1.5.1

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
5.9F5 NetworksCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-754Improper Check for Unusual or Exceptional Conditions
T1499.004Application or System Exploitation DoS

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo