Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
CVE-2026-41956 Details
Description
When a classification profile is configured on a UDP virtual server, 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.
A denial-of-service vulnerability has been identified in F5 BIG-IP systems when a classification profile is applied to a UDP virtual server. Under these conditions, certain undisclosed requests can lead to the termination of the Traffic Management Microkernel (TMM) process. This disruption causes a temporary outage as TMM restarts, allowing remote, unauthenticated attackers to interfere with active traffic. The issue is confined to the data plane, with no impact on the control plane.
F5 recommends removing the classification profile from UDP virtual servers until a fixed version is installed. For systems with high availability (HA) clustering, specific actions can be configured in the HA table to manage the impact of this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 13, 2026Exploitation: NoneAutomatable: YesTechnical Impact: Partial
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://my.f5.com/manage/s/article/K000158038 | [email protected] | MitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| f5 big-ip access policy manager | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip advanced firewall manager | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip advanced web application firewall | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip analytics | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip application acceleration manager | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip application security manager | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip application visibility and reporting | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip automation toolchain | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip carrier-grade nat | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip container ingress services | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip ddos hybrid defender | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip domain name system | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip edge gateway | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip fraud protection service | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip global traffic manager | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip link controller | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip local traffic manager | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip policy enforcement manager | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip ssl orchestrator | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip webaccelerator | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip websafe | >= 17.1.0, <= 17.1.3 >= 17.5.0, <= 17.5.1 >= 16.1.0, <= 16.1.6 |
CPE
Remediation
| |
| f5 big-ip next cloud-native network functions | >= 2.0.0, <= 2.0.2 1.4.0 |
CPE
Remediation
| |
| f5 big-ip next for kubernetes | 2.0.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 24, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 13, 2026 | New CVE Received | [email protected] |