F5 BIG-IP prior 17.1.3.1/17.5.1.4 clickjacking

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.5$0-$5k0.00

Summaryinfo

A vulnerability was found in F5 BIG-IP and classified as problematic. The impacted element is an unknown function. Executing a manipulation can lead to clickjacking. This vulnerability is tracked as CVE-2026-20732. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in F5 BIG-IP and classified as problematic. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a clickjacking vulnerability. The CWE definition for the vulnerability is CWE-451. The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks. As an impact it is known to affect integrity. CVE summarizes:

A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The advisory is available at my.f5.com. This vulnerability was named CVE-2026-20732 since 01/21/2026. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 02/14/2026). This vulnerability is assigned to T1566.003 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 298038 (F5 Networks BIG-IP : BIG-IP Configuration utility vulnerability (K000156644)), 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 vulnerability database at Tenable (298038). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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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: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔒

CNA Base Score: 3.1
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Clickjacking
CWE: CWE-451
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: 298038
Nessus Name: F5 Networks BIG-IP : BIG-IP Configuration utility vulnerability (K000156644)

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

01/21/2026 CVE reserved
02/04/2026 +14 days Advisory disclosed
02/04/2026 +0 days VulDB entry created
02/14/2026 +10 days VulDB entry last update

Sourcesinfo

Vendor: f5.com

Advisory: K000156644
Status: Confirmed

CVE: CVE-2026-20732 (🔒)
GCVE (CVE): GCVE-0-2026-20732
GCVE (VulDB): GCVE-100-344362

Entryinfo

Created: 02/04/2026 18:33
Updated: 02/14/2026 04:47
Changes: 02/04/2026 18:33 (75), 02/06/2026 04:55 (2), 02/14/2026 04:47 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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