F5 BIG-IP Next CNF prior 15.1.10.8/16.1.6.1/17.1.3/17.5.1.3 Traffic Management Microkernel denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.62

Summaryinfo

A vulnerability was found in F5 BIG-IP Next CNF, BIG-IP Next for Kubernetes and BIG-IP PEM. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component Traffic Management Microkernel. This manipulation causes denial of service. The identification of this vulnerability is CVE-2025-54479. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in F5 BIG-IP Next CNF, BIG-IP Next for Kubernetes and BIG-IP PEM. It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component Traffic Management Microkernel. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

When a classification profile is configured on a virtual server without an HTTP or HTTP/2 profile, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The advisory is shared at my.f5.com. This vulnerability is known as CVE-2025-54479. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 270619 (F5 Networks BIG-IP : BIG-IP PEM vulnerability (K000151475)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 15.1.10.8, 16.1.6.1, 17.1.3 or 17.5.1.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (270619) and CERT Bund (WID-SEC-2025-2310). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • F5 F5OS
  • F5 BIG-IP

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 270619
Nessus Name: F5 Networks BIG-IP : BIG-IP PEM vulnerability (K000151475)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BIG-IP Next CNF/BIG-IP Next for Kubernetes/BIG-IP PEM 15.1.10.8/16.1.6.1/17.1.3/17.5.1.3

Timelineinfo

10/15/2025 Advisory disclosed
10/15/2025 +0 days VulDB entry created
03/30/2026 +166 days VulDB entry last update

Sourcesinfo

Vendor: f5.com

Advisory: K000151475
Status: Confirmed

CVE: CVE-2025-54479 (🔒)
GCVE (CVE): GCVE-0-2025-54479
GCVE (VulDB): GCVE-100-328669
CERT Bund: WID-SEC-2025-2310 - F5 BIG-IP und F5OS: Mehrere Schwachstellen

Entryinfo

Created: 10/15/2025 15:53
Updated: 03/30/2026 11:30
Changes: 10/15/2025 15:53 (53), 10/16/2025 05:41 (2), 10/17/2025 02:14 (24), 03/30/2026 11:30 (7)
Complete: 🔍
Cache ID: 216:003:103

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