Skip to main content

Tag: f5 big ip

7 articles

F5 BIG-IP network appliance on a rack with cables and technicians in the background.

Attackers Exploit F5 BIG-IP APM Zero-Day Vulnerability

A critical zero-day vulnerability in F5 BIG-IP APM is under active attack, putting organizations at risk of remote code execution - and it's essential to take immediate action to protect yourself. This unpatched flaw is being exploited by attackers, making it crucial to act now to safeguard your systems.

Analyst 207
Network appliance sits idle in data center with blurred laptop screen in background.

F5 BIG-IP Malware Exploits Memory to Evade Detection

Sophos has uncovered a sneaky malware exploit in F5 BIG-IP systems that hides a PHP web shell in memory, evading detection by not leaving a digital footprint on disk. This stealthy technique injects the web shell into specific PHP scripts, allowing hackers to carry out remote code execution without being caught.

Analyst 207
Network equipment and computer terminals in a dimly lit operations room.

Hackers Deploy Linux Rootkit via F5 BIG-IP Flaw

Hackers are exploiting a critical F5 BIG-IP flaw, known as CVE-2025-53521, to deploy a sneaky Linux rootkit that allows them to execute code on vulnerable servers. This alarming attack vector has already exposed 795 endpoints online, putting countless systems at risk.

Analyst 207
Rows of computer servers and networking equipment in a server room with a focus on a specific device showing a subtle hint…

China-Linked Hackers Infiltrate Linux Login Software with Decade-Long Backdoor

A stealthy China-linked hacking group, tracked as Velvet Ant, has been quietly infiltrating Linux login software since 2016, embedding a decade-long backdoor that evades routine security cleanups and password resets. This sophisticated operation, dubbed Operation Highland, has allowed the group to fly under the radar and maintain persistent access to targeted systems.

Analyst 207
F5 BIG-IP Instances Vulnerable to Ongoing RCE Attacks

F5 BIG-IP Instances Vulnerable to Ongoing RCE Attacks

With over 14,000 F5 BIG-IP Access Policy Manager instances exposed online, a critical vulnerability is putting countless systems at risk of remote code execution attacks. Attackers are actively exploiting this flaw, making it crucial for organizations to take immediate action to protect themselves.

Analyst 207
Critical F5 BIG-IP Bug Prompts NCSC Urgent Patching Alert

Critical F5 BIG-IP Bug Prompts NCSC Urgent Patching Alert

A critical bug in F5's BIG-IP system, tracked as CVE-2025-53521, has prompted the NCSC to issue an urgent patching alert, warning UK firms and organizations worldwide of the devastating consequences of a potential takeover by unauthenticated attackers. Is your organization patched and protected from this highly severe vulnerability?

Analyst 207
Critical F5 BIG-IP flaw sparks alarming surge in attacks

Critical F5 BIG-IP flaw sparks alarming surge in attacks

A critical vulnerability in F5's BIG-IP system is under active attack by hackers, posing a significant threat to the security of our digital infrastructure. With patches and mitigations urgently needed, what's at stake if this flaw isn't addressed?

Analyst 207