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Vulnerabilities

Vulnerability · CVE-2023-22839

On BIG-IP versions 17.0.x before 17.0.0.2, 16.1.x before 16.1.3.3, 15.1.x before 15.1.8.1, 14.1.x before 14.1.5.3, and all version of 13.1.x, when a DNS profile with t…

Published Feb 1, 2023 · catalog updated Oct 28, 2026 · big-ip domain name system

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2023-22839. EPSS is 0.63%. Act only if a listed version of big-ip domain name system is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.63%
Remediation
Version ranges on file
Affected products
cpe f5/big-ip domain name system · cpe f5/big-ip local traffic manager

On BIG-IP versions 17.0.x before 17.0.0.2, 16.1.x before 16.1.3.3, 15.1.x before 15.1.8.1, 14.1.x before 14.1.5.3, and all version of 13.1.x, when a DNS profile with the Rapid Response Mode setting enabled is configured on a virtual server with hardware SYN cookies enabled, undisclosed requests cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe f5/big-ip domain name system< 14.1.5.3
  • cpe f5/big-ip domain name system< 15.1.7
  • cpe f5/big-ip domain name system< 16.1.3.3
  • cpe f5/big-ip domain name system< 17.0.0.2
  • cpe f5/big-ip domain name system>= 13.1.0, <= 13.1.5
  • cpe f5/big-ip local traffic manager< 14.1.5.3
  • cpe f5/big-ip local traffic manager< 15.1.7
  • cpe f5/big-ip local traffic manager>= 13.1.0, <= 13.1.5

How to fix CVE-2023-22839

  • Upgrade

    CVE-2023-22839 lists a fix boundary at 14.1.5.3. Compare the installed build with that boundary before you change production.

  • Version check

    Affected < 14.1.5.3

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2023-22839. EPSS is 0.63%. Act only if a listed version of big-ip domain name system is installed.

Which versions are affected?

Compare what you have installed with f5/big-ip domain name system < 14.1.5.3; f5/big-ip domain name system < 15.1.7; f5/big-ip domain name system < 16.1.3.3; f5/big-ip domain name system < 17.0.0.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-476: NULL Pointer Dereference. EPSS 0.63%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 1, 2023 · NIST NVD

    Detected

    On BIG-IP versions 17.0.x before 17.0.0.2, 16.1.x before 16.1.3.3, 15.1.x before 15.1.8.1, 14.1.x before 14.1.5.3, and all version of 13.1.x, when a DNS profile with the Rapid Response Mode setting enabled is configured on a virtual server with hardware SYN cookies enabled, undisclosed requests cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached

  2. Oct 28, 2026 · NIST NVD

    Updated

    On BIG-IP versions 17.0.x before 17.0.0.2, 16.1.x before 16.1.3.3, 15.1.x before 15.1.8.1, 14.1.x before 14.1.5.3, and all version of 13.1.x, when a DNS profile with the Rapid Response Mode setting enabled is configured on a virtual server with hardware SYN cookies enabled, undisclosed requests cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached

Sources

  • CVE.orgVulnerability recordCVE-2023-22839

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2023-22839

    On BIG-IP versions 17.0.x before 17.0.0.2, 16.1.x before 16.1.3.3, 15.1.x before 15.1.8.1, 14.1.x before 14.1.5.3, and all version of 13.1.x, when a DNS profile with the Rapid Response Mode setting enabled is configured on a virtual server with hardware SYN cookies enabled, undis

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 28, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 29, 2026
  • NIST NVDOct 28, 2026