F5 BIG-IP prior 17.1.3.1/17.5.1.4 IP Configuration cross-site request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in F5 BIG-IP. Impacted is an unknown function of the component IP Configuration Handler. Such manipulation leads to cross-site request forgery. This vulnerability is uniquely identified as CVE-2026-40703. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in F5 BIG-IP and classified as problematic. Affected by this issue is an unknown part of the component IP Configuration Handler. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity. CVE summarizes:

A cross-site request forgery (CSRF) vulnerability exists in the dashboard of the BIG-IP Configuration utility.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The advisory is shared for download at my.f5.com. This vulnerability is handled as CVE-2026-40703 since 05/01/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/25/2026).

The vulnerability scanner Nessus provides a plugin with the ID 316095 (F5 Networks BIG-IP : BIG-IP Configuration utility CSRF vulnerability (K35544022)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 17.1.3.1 or 17.5.1.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (316095) and CERT Bund (WID-SEC-2026-1532). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • F5 BIG-IP

Productinfo

Type

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: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.4
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
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: 316095
Nessus Name: F5 Networks BIG-IP : BIG-IP Configuration utility CSRF vulnerability (K35544022)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BIG-IP 17.1.3.1/17.5.1.4

Timelineinfo

05/01/2026 CVE reserved
05/13/2026 +12 days Advisory disclosed
05/13/2026 +0 days VulDB entry created
05/25/2026 +12 days VulDB entry last update

Sourcesinfo

Vendor: f5.com

Advisory: K35544022
Status: Confirmed

CVE: CVE-2026-40703 (🔒)
GCVE (CVE): GCVE-0-2026-40703
GCVE (VulDB): GCVE-100-363632
CERT Bund: WID-SEC-2026-1532 - F5 BIG-IP Produkte: Mehrere Schwachstellen

Entryinfo

Created: 05/13/2026 18:18
Updated: 05/25/2026 03:49
Changes: 05/13/2026 18:18 (76), 05/17/2026 13:35 (7), 05/25/2026 03:49 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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