Every few months a new headline lands about a firewall breach, and the natural reaction is to ask, “Are we exposed?” The latest one—an exposure researchers are calling FortiBleed—is worth your attention, but not for the reason most coverage suggests. The real story isn’t a single vendor’s stumble. It’s that the legacy VPN model every brand still ships is the same target, over and over.
Here are the straight answers for business leaders: what FortiBleed actually is, why this exact story keeps repeating across every major VPN vendor, and why the practices we already run on your behalf—including moving you to SASE—close the door this entire class of attack depends on.
What Just Happened
Researchers disclosed a credential dataset dubbed FortiBleed exposing verified usernames and passwords for roughly 73,932 internet-facing Fortinet FortiGate firewalls—about half of every internet-facing Fortinet device on earth, across 194 countries. More than 30,000 of those credentials were confirmed still valid at disclosure. It was not a new software flaw. It was the harvest of years of leaked credentials, malware-stolen passwords, and intercepted VPN logins, assembled into one usable list.
The single biggest contributing factor, according to the researchers who validated the data, wasn’t exotic: a majority of the affected devices had their firewall management interface exposed directly to the public internet. That’s the digital equivalent of mounting the deadbolt on the outside of the door.
This Is Not a One-Vendor Problem
It would be easy to read this as “a Fortinet issue.” It isn’t. Every major perimeter-VPN vendor has shipped a critical, actively-exploited flaw in its remote-access products—many of them used as the front door for ransomware. The pattern isn’t any one company’s engineering. It’s the architecture itself: an authentication portal sitting on the open internet is a permanent, high-value target.
| Vendor | Identifier | The exposure |
|---|---|---|
| SonicWall | CVE-2024-40766 CVSS 9.3 | SSL-VPN / SonicOS access flaw used by the Akira ransomware group for initial access through 2025. A later wave compromised 100+ SSL-VPN accounts across 16 organizations, and a separate incident exposed cloud-stored firewall config backups. |
| Fortinet | FortiBleed CVE-2022-40684 | ~73,932 firewalls with verified, still-live credentials; SSL-VPN and exposed management interfaces were the primary entry points. |
| Citrix | CVE-2023-4966 CVSS 9.4 | “Citrix Bleed”—a NetScaler Gateway memory leak enabling session hijacking and MFA bypass; exploited by LockBit ransomware, including the Boeing breach. |
| Ivanti | CVE-2023-46805 CVE-2025-22457 | Connect Secure VPN gateways hit by repeated authentication-bypass and remote-code-execution flaws; thousands of appliances mass-exploited, including by nation-state actors. |
| Palo Alto | CVE-2024-3400 CVSS 10.0 | A GlobalProtect VPN command-injection zero-day exploited in the wild; a separate management-interface flaw left thousands of panels remotely exploitable. |
| Cisco | CVE-2024-20353 CVE-2024-20359 | “ArcaneDoor”—state-sponsored exploitation of Cisco ASA VPN firewalls to implant persistent malware directly on the perimeter device. |
The common threadStrong passwords didn’t stop these attacks. Patching alone didn’t either. The constant across every vendor is the model: a VPN or management portal exposed to the internet, protected only by credentials. The fix isn’t a better appliance—it’s a different architecture.
Why R.K. Black Clients Are Protected
None of this is a surprise to us, because the practices that neutralize this class of attack are already part of how we run your environment. Three of them matter most here:
- We are actively moving clients off SSL-VPN to SASE. SSL-VPN is the exact attack surface this entire class of incident exploits. SASE replaces the exposed-portal model with identity-based, zero-trust access—there is no public login page to spray, leak, or crack.
- We update firewall firmware on a regular cadence—at least quarterly. Keeping firmware current, and completing the post-upgrade steps that re-secure stored credentials, neutralizes the techniques at the heart of these campaigns.
- We do not expose management interfaces to the public internet. This was the single biggest factor in FortiBleed, and a recurring one across vendors. Restricting admin access to trusted networks removes the most-targeted entry point entirely.
What This Means for Your Business
FortiBleed is one more proof point in a multi-year pattern: legacy SSL-VPN is a structural liability regardless of brand. The honest takeaway isn’t “switch firewall vendors”—the next vendor will have its own headline eventually. It’s that the exposed-portal model has reached the end of its useful life, and the organizations that move past it stop being a target for the most common ransomware entry point in use today.
SASE means stronger security, simpler remote access for your team, and the single most-attacked surface in these incidents removed entirely. If you’re still relying on legacy SSL-VPN, this is the moment to move.
Still Running Legacy SSL-VPN? Let’s Get You Ahead of It.
For over 70 years, RK Black has helped Oklahoma, Kansas, and Missouri businesses stay secure and productive—because when your security fails, your business stops. We’ll review your remote-access setup, identify any exposed VPN or management surface, and map a practical path to identity-based, zero-trust access with SASE.
We’re not a call center or a distant corporate entity—we’re your local technology partner, with the engineering experience to make the right call and the accountability to stand behind it.
