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No less than 330,000 FortiGate firewalls are still unpatched and vulnerable to CVE-2023-27997, a critical security flaw affecting Fortinet devices that has come under active exploitation in the wild. Cybersecurity firm Bishop Fox, in a  report  published last week, said that out of nearly 490,000 Fortinet SSL-VPN interfaces exposed on the internet, about 69 percent remain unpatched. CVE-2023-27997  (CVSS score: 9.8), also called XORtigate, is a critical vulnerability impacting Fortinet FortiOS and FortiProxy SSL-VPN appliances that could allow a remote attacker to execute arbitrary code or commands via specifically crafted requests. Patches were released by Fortinet last month in versions 6.0.17, 6.2.15, 6.4.13, 7.0.12, and 7.2.5, although the company  acknowledged  that the flaw may have been "exploited in a limited number of cases" in attacks targeting government, manufacturing, and critical infrastructure sectors. Bishop Fox's analysis further found th...

Fortinet on Wednesday said it observed "recent abuse" of a five-year-old security flaw in FortiOS SSL VPN in the wild under certain configurations. The vulnerability in question is CVE-2020-12812 (CVSS score: 5.2), an improper authentication vulnerability in SSL VPN in FortiOS that could allow a user to log in successfully without being prompted for the second factor of authentication if the case of the username was changed. "This happens when two-factor authentication is enabled in the 'user local' setting, and that user authentication type is set to a remote authentication method (e.g., LDAP)," Fortinet noted in July 2020. "The issue exists because of inconsistent case-sensitive matching among the local and remote authentication."

Cybersecurity company Arctic Wolf has warned of a "new cluster of automated malicious activity" that involves unauthorized firewall configuration changes on Fortinet FortiGate devices. The activity, it said, commenced on January 15, 2026, adding it shares similarities with a December 2025 campaign in which malicious SSO logins on FortiGate appliances were recorded against the admin account from different hosting providers by exploiting CVE-2025-59718 and CVE-2025-59719. Both vulnerabilities allow for unauthenticated bypass of SSO login authentication via crafted SAML messages when the FortiCloud single sign-on (SSO) feature is enabled on affected Devices. The shortcomings impact FortiOS, FortiWeb, FortiProxy, and FortiSwitchManager. "This activity involved the creation of generic accounts intended for persistence, configuration changes granting VPN access to those accounts, as well as exfiltration of firewall configurations," Arctic Wolf said of the developin...

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 alongside Dany Bach,  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. French cybersecurity company Olympe Cyberdefense, in an independent alert,  said  the issue has been patched in versions 6.2.15, 6.4.13, 7.0.12, and 7.2.5. "The flaw would allow a hostile agent to interfere via the VPN, even if the MFA is activated," the firm noted. With Fortinet flaws  emerging  as a  lucrative   attack vector  for threat...

Welcome to your weekly cybersecurity scoop! Ever thought about how the same AI meant to protect our hospitals could also compromise them? This week, we’re breaking down the sophisticated world of AI-driven threats, key updates in regulations, and some urgent vulnerabilities in healthcare tech that need our attention. As we unpack these complex topics, we'll equip you with sharp insights to navigate these turbulent waters. Curious about the solutions? They’re smarter and more unexpected than you might think. Let’s dive in. ⚡ Threat of the Week Juniper Networks Routers Targeted by J-magic — A new campaign targeted enterprise-grade Juniper Networks routers between mid-2023 and mid-2024 to infect them with a backdoor dubbed J-magic when certain precise conditions. The malware is a variant of a nearly 25-year-old, publicly available backdoor referred to as cd00r, and is designed to establish a reverse shell to an attacker-controlled IP address and port. Semiconductor, energy, manuf...

Threat actors have begun to exploit two newly disclosed security flaws in Fortinet FortiGate devices, less than a week after public disclosure. Cybersecurity company Arctic Wolf said it observed active intrusions involving malicious single sign-on (SSO) logins on FortiGate appliances on December 12, 2025. The attacks exploit two critical authentication bypasses (CVE-2025-59718 and CVE-2025-59719, CVSS scores: 9.8). Patches for the flaws were released by Fortinet last week for FortiOS, FortiWeb, FortiProxy, and FortiSwitchManager. "These vulnerabilities allow unauthenticated bypass of SSO login authentication via crafted SAML messages, if the FortiCloud SSO feature is enabled on affected devices," Arctic Wolf Labs said in a new bulletin. It's worth noting that while FortiCloud SSO is disabled by default, it is automatically enabled during FortiCare registration unless administrators explicitly turn it off using the "Allow administrative login using FortiCloud SS...

With breaches making the headlines on an almost weekly basis, the cybersecurity challenges we face are becoming visible not only to large enterprises, who have built security capabilities over the years, but also to small to medium businesses and the broader public. While this is creating greater awareness among smaller businesses of the need to improve their security posture, SMBs are often left facing a gap in the market, unable to find security tooling that is both easy for them to use and which they can afford. When we consider the needs of SMBs, we need to focus both on the development of threat intelligence, which is necessary to understand and identify the threats being faced, as well  as the tools used to provide protection . NTTSH has built a pedigree of over 20 years’ experience in the research and curation of threat intelligence as well as the development of capabilities and products which leverage its threat intelligence to protect customers. After many years of focus...

Details have emerged about a new unpatched security vulnerability in Fortinet's web application firewall (WAF) appliances that could be abused by a remote, authenticated attacker to execute malicious commands on the system. "An OS command injection vulnerability in FortiWeb's management interface (version 6.3.11 and prior) can allow a remote, authenticated attacker to execute arbitrary commands on the system, via the SAML server configuration page," cybersecurity firm Rapid7  said  in an advisory published Tuesday. "This vulnerability appears to be related to  CVE-2021-22123 , which was addressed in  FG-IR-20-120 ." Rapid7 said it discovered and reported the issue in June 2021. Fortinet is expected to release a patch at the end of August with version Fortiweb 6.4.1. The command injection flaw is yet to be assigned a CVE identifier, but it has a severity rating of 8.7 on the CVSS scoring system. Successful exploitation of the vulnerability can allow auth...

Fortinet has begun releasing security updates to address a critical flaw impacting FortiOS that has come under active exploitation in the wild. The vulnerability, assigned the CVE identifier CVE-2026-24858 (CVSS score: 9.4), has been described as an authentication bypass related to FortiOS single sign-on (SSO). The flaw also affects FortiManager and FortiAnalyzer. The company said it's continuing to investigate if other products, including FortiWeb and FortiSwitch Manager, are impacted by the flaw. "An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] in FortiOS, FortiManager, FortiAnalyzer may allow an attacker with a FortiCloud account and a registered device to log into other devices registered to other accounts, if FortiCloud SSO authentication is enabled on those devices," Fortinet said in an advisory released Tuesday. It's worth noting that the FortiCloud SSO login feature is not enabled in the default factory settings. It...