CVE-2022-29479Network attack vector

Service degradation via undisclosed IPv6 packets

Published May 5, 2022 · Updated Sep 17, 2024

Improper input validation in F5 BIG-IP and BIG-IQ Centralized Management allows remote attackers to degrade service via IPv6 packets. The TMM IPv6 stack processes an undisclosed class of packets in a way that decreases performance; F5 has not published the faulty parsing operation. Exposure requires an IPv6 self IP address and the disabled-by-default ipv6.strictcompliance database key to be enabled, and the reported consequence is reduced performance rather than a crash or data compromise.

CVSS severity5.3
Medium
EPSS probability0.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in F5 BIG-IP and BIG-IQ Centralized Management allows remote attackers to degrade service via IPv6 packets. The TMM IPv6 stack processes an undisclosed class of packets in a way that decreases performance; F5 has not published the faulty parsing operation. Exposure requires an IPv6 self IP address and the disabled-by-default ipv6.strictcompliance database key to be enabled, and the reported consequence is reduced performance rather than a crash or data compromise.

The record

CVE
CVE-2022-29479
Published
May 5, 2022
Updated
Sep 17, 2024
Vendor
F5 Networks
Product
BIG-IP
Classifications
CWE-20, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 5, 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=11.6.x
  2. Affected versionversion=12.1.x
  3. Affected versionversion=13.1.x <13.1.5
  4. Affected versionversion=14.1.x <14.1.4.6
  5. 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=11.6.x; version=12.1.x; version=13.1.x <13.1.5; version=14.1.x <14.1.4.6; version=15.1.x <15.1.5.1
F5 Networks · BIG-IQ Centralized Managementversion=7.x; version=8.x

Published CVSS scores

5.3F5 NetworksCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499Endpoint Denial of Service

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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