Security News > 2023 > June > Critical RCE Flaw Discovered in Fortinet FortiGate Firewalls - Patch Now!

Fortinet has released patches to address a critical security flaw in its FortiGate firewalls that could be abused by a threat actor to achieve remote code execution.
The vulnerability, tracked as CVE-2023-27997, is "Reachable pre-authentication, on every SSL VPN appliance," Lexfo Security researcher Charles Fol, who discovered and reported the flaw, said in a tweet over the weekend.
Details about the security flaw are currently withheld and Fortinet is yet to release an advisory, although the network security company is expected to publish more details in the coming days.
With Fortinet flaws emerging as a lucrative attack vector for threat actors in recent years, it's highly recommended that users move quickly to apply the fixes as soon as possible to mitigate potential risks.
Fortinet shared the following statement with The Hacker News after the publication of the story -.
For more on Fortinet's responsible disclosure process, visit the Fortinet Product Security Incident Response Team page: https://www.
News URL
https://thehackernews.com/2023/06/critical-rce-flaw-discovered-in.html
Related news
- Fortinet Urges FortiSwitch Upgrades to Patch Critical Admin Password Change Flaw (source)
- Critical Erlang/OTP SSH pre-auth RCE is 'Surprisingly Easy' to exploit, patch now (source)
- Critical Erlang/OTP SSH RCE bug now has public exploits, patch now (source)
- Still Using an Older Version of iOS or iPadOS? Update Now to Patch These Critical Security Vulnerabilities (source)
- Old Fortinet flaws under attack with new method its patch didn't prevent (source)
- Gladinet’s Triofox and CentreStack Under Active Exploitation via Critical RCE Vulnerability (source)
- Critical Commvault RCE vulnerability fixed, PoC available (CVE-2025-34028) (source)
- Critical Langflow RCE flaw exploited to hack AI app servers (source)
- SysAid Patches 4 Critical Flaws Enabling Pre-Auth RCE in On-Premise Version (source)
- Fortinet fixes critical zero-day exploited in FortiVoice attacks (source)
Related Vulnerability
DATE | CVE | VULNERABILITY TITLE | RISK |
---|---|---|---|
2023-06-13 | CVE-2023-27997 | Out-of-bounds Write vulnerability in Fortinet Fortios and Fortiproxy A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests. | 9.8 |