F5 vulnerabilities
We track 249 vulnerabilities in F5 products across 60+ products. 248 are rated high or critical, and 14 have been exploited in real attacks. The most recent was published on October 14, 2026.
Latest F5 vulnerabilities
- 7.4 High severity
BIG-IP Next Central Manager: Channel Accessible by Non-Endpoint
BIG-IP Next Central Manager (CM) may allow an unauthenticated, remote attacker to obtain the BIG-IP Next LTM/WAF instance credentials. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- 8.0 High severity
BIG-IP: Improper Neutralization of Input During Web Page Generation
A stored cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to run JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Tech
- 7.4 High severity
BIG-IP Edge Client: Origin Validation Error
An origin validation vulnerability exists in BIG-IP APM browser network access VPN client for Windows, macOS and Linux which may allow an attacker to bypass F5 endpoint inspection. Note: Software versions which have reached End of Technical Support (EoTS) are
- 7.5 High severity
BIG-IP Next Central Manager: Improper Neutralization of Special Elements used in an SQL Command
An SQL injection vulnerability exists in the BIG-IP Next Central Manager API (URI). Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- 7.5 High severity
BIG-IP: NULL Pointer Dereference
When BIG-IP AFM is licensed and provisioned, undisclosed DNS traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- 7.5 High severity
BIG-IP Next Central Manager: Improper Neutralization of Special Elements used in an SQL Command
An OData injection vulnerability exists in the BIG-IP Next Central Manager API (URI). Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- 7.6 High severity
DHCP: Missing Authentication for Critical Functionality
DHCP can add routes to a client’s routing table via the classless static route option (121). VPN-based security solutions that rely on routes to redirect traffic can be forced to leak traffic over the physical interface. An attacker on the same local network c
- 7.5 High severity
NGINX Plus: Use After Free
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate. Note: The HTTP/3 QUIC module is not enabled by default and is considered experimental. For more information, refer to
- 7.5 High severity
NGINX Plus: NULL Pointer Dereference
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate. Note: The HTTP/3 QUIC module is not enabled by default and is considered experimental. For more information, refer to
- 7.5 High severity
BIG-IP: NULL Pointer Dereference
When a virtual server is enabled with VLAN group and SNAT listener is configured, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- 7.5 High severity
BIG-IP: Out-of-bounds Write
When a BIG-IP PEM classification profile is configured on a UDP virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. This issue affects classification engines using signatures released between 09-08-2022 and 02-
- 7.5 High severity
BIG-IP: Allocation of Resources Without Limits or Throttling
When SSL Client Certificate LDAP or Certificate Revocation List Distribution Point (CRLDP) authentication profile is configured on a virtual server, undisclosed requests can cause an increase in CPU resource utilization. Note: Software versions which have reac
- 7.5 High severity
BIG-IP: Incorrect Calculation of Buffer Size
Undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. For the Application Visibility and Reporting module, this may occur when the HTTP Analytics profile with URLs enabled under Collected Entities is configured on a virtual serv
- 7.5 High severity
BIG-IP: Use of Uninitialized Resource
When HTTP/2 is configured on BIG-IP or BIG-IP Next SPK systems, undisclosed responses can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- 7.5 High severity
BIG-IP: NULL Pointer Dereference
When a BIG-IP Advanced WAF or BIG-IP ASM policy with a Request Body Handling option is attached to a virtual server, undisclosed requests can cause the BD process to terminate. The condition results from setting the Request Body Handling option in the Header-B
- 7.1 High severity
BIG-IP Next SPK: Insufficiently Protected Credentials
A vulnerability exists in BIG-IP Next CNF and SPK systems that may allow access to undisclosed sensitive files. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- 7.2 High severity
When BIG-IP is deployed in high availability (HA) and an iControl REST API token is updated…
When BIG-IP is deployed in high availability (HA) and an iControl REST API token is updated, the change does not sync to the peer device. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- 8.7 High severity
BIG-IP: Improper Neutralization of Special Elements used in a Command
When running in appliance mode, an authenticated remote command injection vulnerability exists in an undisclosed iControl REST endpoint on multi-bladed systems. A successful exploit can allow the attacker to cross a security boundary. Note: Software versions w
- 7.5 High severity
BIG-IP: Return of Pointer Value Outside of Expected Range
When an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Suppo
- 7.5 High severity
BIG-IP: Missing Release of Resource after Effective Lifetime
When a BIG-IP ASM/Advanced WAF security policy is configured on a virtual server, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- 7.5 High severity
BIG-IP: Allocation of Resources Without Limits or Throttling
For unspecified traffic patterns, BIG-IP AFM IPS engine may spend an excessive amount of time matching the traffic against signatures, resulting in Traffic Management Microkernel (TMM) restarting and traffic disruption. Note: Software versions which have reach
- 7.5 High severity
BIG-IP: NULL Pointer Dereference
When BIG-IP AFM Device DoS or DoS profile is configured with NXDOMAIN attack vector and bad actor detection, undisclosed queries can cause the Traffic Management Microkernel (TMM) to terminate. NOTE: Software versions which have reached End of Technical Suppor
- 8.8 High severity
F5 BIG-IP Configuration Utility SQL Injection Exploited
An authenticated SQL injection vulnerability exists in the BIG-IP Configuration utility which may allow an authenticated attacker with network access to the Configuration utility through the BIG-IP management port and/or self IP addresses to execute arbitrary
- 9.8 Critical severity
F5 BIG-IP Configuration Utility Authentication Bypass Exploited
Undisclosed requests may bypass configuration utility authentication, allowing an attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute arbitrary system commands. Note: Software versions which have re
- 7.5 High severity
HTTP/2 Rapid Reset Attack Exploited
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
- 7.8 High severity
BIG-IP Edge Client: Insufficient Verification of Data Authenticity
An insufficient verification of data vulnerability exists in BIG-IP Edge Client Installer on macOS that may allow an attacker elevation of privileges during the installation process. Note: Software versions which have reached End of Technical Support (EoTS) ar
- 7.4 High severity
BIG-IP Next SPK: Use of Hard-coded Credentials
The BIG-IP SPK TMM (Traffic Management Module) f5-debug-sidecar and f5-debug-sshd containers contains hardcoded credentials that may allow an attacker with the ability to intercept traffic to impersonate the SPK Secure Shell (SSH) server on those containers. T
- 8.7 High severity
BIG-IP: Privilege Defined With Unsafe Actions
When running in Appliance mode, an authenticated user assigned the Administrator role may be able to bypass Appliance mode restrictions, utilizing BIG-IP external monitor on a BIG-IP system. A successful exploit can allow the attacker to cross a security bound
- 7.8 High severity
BIG-IP Edge Client: Improper Verification of Cryptographic Signature
The BIG-IP Edge Client Installer on macOS does not follow best practices for elevating privileges during the installation process. This vulnerability is due to an incomplete fix for CVE-2023-38418. Note: Software versions which have reached End of Technical Su
- 7.2 High severity
When a non-admin user has been assigned an administrator role via an iControl REST PUT request…
When a non-admin user has been assigned an administrator role via an iControl REST PUT request and later the user's role is reverted back to a non-admin role via the Configuration utility, tmsh, or iControl REST. BIG-IP non-admin user can still have access to
- 9.9 Critical severity
BIG-IP: Improper Limitation of a Pathname to a Restricted Directory
A directory traversal vulnerability exists in the BIG-IP Configuration Utility that may allow an authenticated attacker to execute commands on the BIG-IP system. For BIG-IP system running in Appliance mode, a successful exploit can allow the attacker to cross
- 7.5 High severity
BIG-IP: Improper Handling of Exceptional Conditions
When IPSec is configured on a Virtual Server, undisclosed traffic can cause TMM to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- 7.5 High severity
BIG-IP: Allocation of Resources Without Limits or Throttling
When TCP Verified Accept is enabled on a TCP profile that is configured on a Virtual Server, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- 8.1 High severity
An authenticated user's session cookie may remain valid for a limited time after logging out…
An authenticated user's session cookie may remain valid for a limited time after logging out from the BIG-IP Configuration utility on a multi-blade VIPRION platform. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- 7.5 High severity
BIG-IP: Missing Release of Memory after Effective Lifetime
When a client-side HTTP/2 profile and the HTTP MRF Router option are enabled for a virtual server, and an iRule using the HTTP_REQUEST event or Local Traffic Policy are associated with the virtual server, undisclosed requests can cause TMM to terminate. Note:
- 8.2 High severity
BIG-IP Edge Client: Cleartext Transmission of Sensitive Information
BIG-IP APM clients may send IP traffic outside of the VPN tunnel. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- 7.1 High severity
BIG-IP Edge Client: Cleartext Transmission of Sensitive Information
BIG-IP APM clients may send IP traffic outside of the VPN tunnel. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- 7.8 High severity
BIG-IP Edge Client: Improper Verification of Cryptographic Signature
The BIG-IP Edge Client Installer on macOS does not follow best practices for elevating privileges during the installation process. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- 7.5 High severity
BIG-IP: Missing Release of Memory after Effective Lifetime
When UDP profile with idle timeout set to immediate or the value 0 is configured on a virtual server, undisclosed traffic can cause TMM to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- 8.8 High severity
BIG-IP: Improper Neutralization of Special Elements used in an OS Command
When DNS is provisioned, an authenticated remote command execution vulnerability exists in DNS iQuery mesh. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.