F5: Security Vulnerabilities
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method "none," and (3) the authentication server returns the "Auth-Wait" response header.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
6.3
EPSS Score
0.001
Published
2025-08-13
When a BIG-IP LTM Client SSL profile is configured on a virtual server with SSL Forward Proxy enabled and Anonymous Diffie-Hellman (ADH) ciphers enabled, 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.
CVSS Score
8.7
EPSS Score
0.007
Published
2025-08-13
When Network Access is configured on a BIG-IP APM virtual server, 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.
CVSS Score
8.7
EPSS Score
0.006
Published
2025-08-13
A missing file integrity check vulnerability exists on MacOS F5 VPN browser client installer that may allow a local, authenticated attacker with access to the local file system to replace it with a malicious package installer.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
7.0
EPSS Score
0.0
Published
2025-08-13
On F5OS, an improper authorization vulnerability exists where remotely authenticated users (LDAP, RADIUS, TACACS+) may be authorized with higher privilege F5OS roles. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
8.7
EPSS Score
0.004
Published
2025-05-07
When an HTTP profile with the Enforce RFC Compliance option is configured on a 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.
CVSS Score
8.7
EPSS Score
0.006
Published
2025-05-07
When a Stream Control Transmission Protocol (SCTP) profile 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.
CVSS Score
8.7
EPSS Score
0.006
Published
2025-05-07
When HTTP/2 client and server profile is configured on a virtual server, undisclosed requests can cause TMM to terminate.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
CVSS Score
8.7
EPSS Score
0.007
Published
2025-05-07
When connection mirroring is configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate in the standby BIG-IP systems in a traffic group.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
8.7
EPSS Score
0.006
Published
2025-05-07
When a Session Initiation Protocol (SIP) message routing framework (MRF) application layer gateway (ALG) profile is configured on a Message Routing 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.
CVSS Score
8.7
EPSS Score
0.007
Published
2025-05-07