F5 BIG-IP APM code injection

CVSS Meta Temp Score
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CTI Interest Score
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9.6$5k-$25k0.00

Summaryinfo

A vulnerability labeled as very critical has been found in F5 BIG-IP. This affects an unknown function of the component APM. Executing a manipulation can lead to code injection. This vulnerability is registered as CVE-2026-94127. It is possible to launch the attack remotely. Furthermore, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in F5 BIG-IP and classified as very critical. This vulnerability affects an unknown part of the component APM. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

When a BIG-IP APM access policy and an OAuth profile is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE). Impact: This vulnerability allows an unauthenticated attacker to perform remote code execution. The BIG-IP system in Appliance mode is also vulnerable. This is a data plane issue; there is no control plane exposure. 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 was named CVE-2026-94127 since 09/20/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but an exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/25/2026). The MITRE ATT&CK project declares the attack technique as T1059.

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 350284 (F5 Networks BIG-IP : BIG-IP APM vulnerability (K000162605)), which helps to determine the existence of the flaw in a target environment. This issue was added on 09/22/2026 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 09/25/2026:

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BO

Upgrading to version Hotfix-BIGIP-17.1.3.5.0.41.14-ENG, Hotfix-BIGIP-17.5.1.9.0.160.12-ENG or Hotfix-BIGIP-21.1.0.2.0.30.22-ENG eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (350284). Once again VulDB remains the best source for vulnerability data.

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: 9.9
VulDB Meta Temp Score: 9.6

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Attacked

EPSS Score: 🔒
EPSS Percentile: 🔒

KEV Added: 🔒
KEV Due: 🔒
KEV Remediation: 🔒
KEV Ransomware: 🔒
KEV Notice: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 350284
Nessus Name: F5 Networks BIG-IP : BIG-IP APM vulnerability (K000162605)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BIG-IP Hotfix-BIGIP-17.1.3.5.0.41.14-ENG/Hotfix-BIGIP-17.5.1.9.0.160.12-ENG/Hotfix-BIGIP-21.1.0.2.0.30.22-ENG

Timelineinfo

09/20/2026 CVE reserved
09/22/2026 +2 days Advisory disclosed
09/22/2026 +0 days VulDB entry created
09/25/2026 +3 days VulDB entry last update

Sourcesinfo

Vendor: f5.com

Advisory: my.f5.com
Status: Confirmed

CVE: CVE-2026-94127 (🔒)
GCVE (CVE): GCVE-0-2026-94127
GCVE (VulDB): GCVE-100-408460
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/22/2026 17:01
Updated: 09/25/2026 23:09
Changes: 09/22/2026 17:01 (75), 09/23/2026 01:10 (12), 09/25/2026 23:09 (2)
Complete: 🔍
Cache ID: 216::103

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