CVE-2025-21091: BIG-IP SNMP vulnerability
First published: Wed Feb 05 2025(Updated: )
When SNMP v1 or v2c are disabled on the BIG-IP system, undisclosed requests can cause an increase in memory resource utilization.
Credit: f5sirt@f5.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| F5 BIG-IP and BIG-IQ Centralized Management | >=17.1.0<=17.1.1 | 17.1.2 |
| F5 BIG-IP and BIG-IQ Centralized Management | >=16.1.0<=16.1.5 | - |
| F5 BIG-IP and BIG-IQ Centralized Management | >=15.1.0<=15.1.10 | - |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21091?
CVE-2025-21091 is considered to have a moderate impact due to increased memory resource utilization under certain conditions.
How do I fix CVE-2025-21091?
To mitigate CVE-2025-21091, ensure that you are running a fixed version of F5 BIG-IP, specifically version 17.1.2 or later.
What versions of F5 BIG-IP are affected by CVE-2025-21091?
CVE-2025-21091 affects F5 BIG-IP versions 15.1.0 to 15.1.10, 16.1.0 to 16.1.5, and 17.1.0 to 17.1.1.
What conditions lead to the vulnerability described in CVE-2025-21091?
CVE-2025-21091 occurs when SNMP v1 or v2c are disabled on the BIG-IP system, allowing undisclosed requests to impact memory utilization.
Is there a specific workaround for CVE-2025-21091?
There are no documented workarounds for CVE-2025-21091, so updating to a patched version is recommended.
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- alias/CVE-2025-21091
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/f5
- canonical/f5 big-ip and big-iq centralized management
- version/f5 big-ip and big-iq centralized management/17.1.0
- version/f5 big-ip and big-iq centralized management/17.1.1
- version/f5 big-ip and big-iq centralized management/16.1.0
- version/f5 big-ip and big-iq centralized management/16.1.5
- version/f5 big-ip and big-iq centralized management/15.1.0
- version/f5 big-ip and big-iq centralized management/15.1.10