F5 BIG-IP APM up to 15.1.10/16.1.6/17.1.2/17.5.1 iRules denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in F5 BIG-IP APM up to 15.1.10/16.1.6/17.1.2/17.5.1. This vulnerability affects unknown code of the component iRules. The manipulation leads to denial of service. This vulnerability is documented as CVE-2025-53474. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in F5 BIG-IP APM up to 15.1.10/16.1.6/17.1.2/17.5.1. It has been rated as problematic. This issue affects an unknown code of the component iRules. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

When an iRule using an ILX::call command is configured on a virtual server, undisclosed traffic 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. The identification of this vulnerability is CVE-2025-53474. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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 270578 (F5 Networks BIG-IP : BIG-IP iRules vulnerability (K44517780)), 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 (270578) and CERT Bund (WID-SEC-2025-2310). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • F5 F5OS
  • F5 BIG-IP

Productinfo

Type

Vendor

Name

Version

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: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 270578
Nessus Name: F5 Networks BIG-IP : BIG-IP iRules vulnerability (K44517780)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BIG-IP APM 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: K000156572
Status: Confirmed

CVE: CVE-2025-53474 (🔒)
GCVE (CVE): GCVE-0-2025-53474
GCVE (VulDB): GCVE-100-328661
CERT Bund: WID-SEC-2025-2310 - F5 BIG-IP und F5OS: Mehrere Schwachstellen

Entryinfo

Created: 10/15/2025 15:43
Updated: 03/30/2026 11:30
Changes: 10/15/2025 15:43 (54), 10/17/2025 02:14 (24), 10/17/2025 08:43 (2), 03/30/2026 11:30 (7)
Complete: 🔍
Cache ID: 216::103

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