Firewalls and VPNs Under Siege as Businesses Report Growing Cyber Intrusions

A security researcher has discovered an ongoing cyberattack that is active, exploiting a newly discovered vulnerability in Fortinet’s FortiGate Firewalls to infiltrate corporate and enterprise networks and has been conducting this activity for some time. A security advisory published on Tuesday by Fortinet confirmed the existence of the critical security flaw known as CVE-2024-55591 and indicated that the vulnerability is currently being exploited in the wild. 

Nevertheless, cybersecurity experts are voicing their concerns over the possibility that malicious actors are exploiting this flaw as a zero-day vulnerability – a term that refers to a software vulnerability exploited before the vendor is made aware of or has issued a patch for it. According to a report by Fortinet, attackers may have actively targeted this vulnerability since at least December, many months before it was publicly disclosed and patched. 

In particular, organisations that heavily rely on FortiGate Firewalls for perimeter defence face a significant threat when the vulnerability is exploited by exploiting CVE-2024-55591. As a result of the vulnerability’s criticality, enterprises should apply security updates as soon as possible and examine their systems for any indications of unauthorized access as soon as possible. Even though zero-day exploits remain a threat, this development highlights the fact that cybercriminals are increasingly focusing on foundational network infrastructure to gain a footh

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