F5 BIG-IP up to 15.1.10/16.1.5/17.1.2 Client SSL Profile 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 identified as problematic has been detected in F5 BIG-IP up to 15.1.10/16.1.5/17.1.2. This affects an unknown part of the component Client SSL Profile Handler. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2025-52585. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in F5 BIG-IP up to 15.1.10/16.1.5/17.1.2 and classified as problematic. This issue affects some unknown functionality of the component Client SSL Profile Handler. 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 a BIG-IP LTM Client SSL profile is configured on a virtual server with SSL Forward Proxy enabled and Anonymous Diffie-Hellman (ADH) ciphers enabled, 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. The identification of this vulnerability is CVE-2025-52585. 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 249248 (F5 Networks BIG-IP : BIG-IP Client SSL profile vulnerability (K000141436)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 16.1.6 or 17.1.2.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (249248) and CERT Bund (WID-SEC-2025-1823). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • 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: 249248
Nessus Name: F5 Networks BIG-IP : BIG-IP Client SSL profile vulnerability (K000141436)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BIG-IP 16.1.6/17.1.2.2

Timelineinfo

08/13/2025 Advisory disclosed
08/13/2025 +0 days VulDB entry created
10/22/2025 +70 days VulDB entry last update

Sourcesinfo

Vendor: f5.com

Advisory: K000141436
Status: Confirmed

CVE: CVE-2025-52585 (🔒)
GCVE (CVE): GCVE-0-2025-52585
GCVE (VulDB): GCVE-100-319937
CERT Bund: WID-SEC-2025-1823 - F5 BIG-IP: Mehrere Schwachstellen

Entryinfo

Created: 08/13/2025 16:26
Updated: 10/22/2025 04:09
Changes: 08/13/2025 16:26 (54), 08/15/2025 15:42 (2), 08/17/2025 19:38 (7), 10/22/2025 04:09 (25)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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