Tag: fortinet
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A Lack of Spending Isn’t the Problem With Cloud Security, Structural Complexity Is
Cloud security is hard and getting harder, a Fortinet study says, as AI widens a complexity gap and empowers attackers. First seen on securityboulevard.com Jump to article: securityboulevard.com/2026/01/a-lack-of-spending-isnt-the-problem-with-cloud-security-structural-complexity-is/
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SolarWinds, again: Critical RCE bugs reopen old wounds for enterprise security teams
Tags: access, attack, authentication, awareness, breach, cisco, control, credentials, cve, cybersecurity, data, exploit, flaw, fortinet, infrastructure, malicious, programming, radius, rce, remote-code-execution, software, threat, update, vulnerabilityRemote code execution and data deserialization vulnerabilities CVE-2025-40551 (critical) and CVE-2025-40553 (critical);Authentication and bypass security flaws CVE-2025-40552 (critical), CVE-2025-40554 (critical), CVE-2025-40536 (high), and CVE-2025-40537 (high).CVE-2025-40551 and CVE-2025-40553 make WHD susceptible to untrusted data deseralization that could allow attackers to run commands on the host machine. The flaw could be exploited without authentication.The other two critical…
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Fortinet Confirms New Zero-Day Behind Malicious SSO Logins
To stop the ongoing attacks, the cybersecurity vendor took the drastic step of temporarily disabling FortiCloud single sign-on (SSO) authentication for all devices. First seen on darkreading.com Jump to article: www.darkreading.com/vulnerabilities-threats/fortinet-new-zero-day-malicious-sso-logins
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Fortinet Locks Down FortiCloud SSO Amid Zero-Day Attacks
Mitigation: SSO Access Restricted After Attackers Compromised Fully Patched Devices. Network security giant Fortinet locked out cloud customers from its single sign-on service until they update device firmware with a patch against active attacks exploiting an improper access control zero day. Only Fortinet devices running the latest, patched firmware versions can use Fortinet SSO. First…
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Fortinet Confirms CVE-2026-24858 SSO Flaw Under Active Attack
Fortinet says attackers are actively exploiting CVE-2026-24858 to gain administrative access via FortiCloud SSO. First seen on esecurityplanet.com Jump to article: www.esecurityplanet.com/threats/fortinet-confirms-cve-2026-24858-sso-flaw-under-active-attack/
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Fortinet unearths another critical bug as SSO accounts borked post-patch
More work for admins on the cards as they await a full dump of fixes First seen on theregister.com Jump to article: www.theregister.com/2026/01/28/fortinet_forticloud_vuln/
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Fortinet patches actively exploited FortiOS SSO auth bypass (CVE-2026-24858)
Fortinet released fixes for a critical FortiOS SSO auth bypass (CVE-2026-24858) actively exploited, impacting FortiOS, FortiManager, and FortiAnalyzer. Fortinet started rolling out patches for a critical FortiOS flaw under active attack. The bug, CVE-2026-24858 (CVSS score of 9.4), lets attackers bypass authentication via SSO. It affects FortiOS, FortiManager, and FortiAnalyzer, while Fortinet checks if other…
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Critical FortiCloud SSO zero”‘day forces emergency service disablement at Fortinet
Attack details and indicators: Fortinet’s investigation into the exploitation revealed attackers used two specific FortiCloud accounts: “cloud-noc@mail.io” and “cloud-init@mail.io,” though the company warned “these addresses may change in the future.”Fortinet identified multiple IP addresses associated with the attacks, including several Cloudflare-protected addresses that attackers used to obscure their activities.”Following authentication via SSO, it has been…
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Fortinet Patches CVE-2026-24858 After Active FortiOS SSO Exploitation Detected
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…
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Fortinet starts patching exploited FortiCloud SSO zero-day (CVE-2026-24858)
Fortinet has begun releasing FortiOS versions that fix CVE-2026-24858, a critical zero-day vulnerability that allowed attackers to log into targeted organizations’ … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/01/28/fortinet-forticloud-sso-zero-day-vulnerability-cve-2026-24858/
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Fortinet blocks exploited FortiCloud SSO zero day until patch is ready
Fortinet has confirmed a new, actively exploited critical FortiCloud single sign-on (SSO) authentication bypass vulnerability, tracked as CVE-2026-24858, and says it has mitigated the zero-day attacks by blocking FortiCloud SSO connections from devices running vulnerable firmware versions. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/fortinet-blocks-exploited-forticloud-sso-zero-day-until-patch-is-ready/
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Fortinet confirms new zero-day attacks against customer devices
cloud-init@mail.io and cloud-noc@mail.io. Other admin accounts are created with the names: audit, backup, itadmin, secadmin, and support. Mitigation: If these or other IOCs such as IP addresses are identified in configurations or the device logs, the system and its configuration should be considered compromised. Fortinet recommends updating the device to the latest available software release,…
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Fortinet warns of active FortiCloud SSO bypass affecting updated devices
Fortinet confirmed attacks are bypassing FortiCloud SSO authentication, affecting even fully patched devices, similar to recent SSO flaws. Fortinet confirmed attacks bypass FortiCloud SSO on fully patched devices. Threat actors automate firewall changes, add users, enable VPNs, and steal configs, in campaigns resembling December 2025 exploits of critical FortiCloud SSO flaws. Arctic Wolf researchers reported…
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Fortinet Confirms Active Exploitation of FortiCloud SSO Bypass Vulnerability
Fortinet has officially confirmed active exploitation of critical FortiCloud single sign-on (SSO) authentication bypass vulnerabilities affecting multiple enterprise security appliances. The company disclosed two vulnerabilities CVE-2025-59718 and CVE-2025-59719 discovered during internal code audits in December 2025, with exploitation attempts now documented in customer environments. The vulnerabilities stem from improper verification of cryptographic signatures in FortiCloud…
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Fortinet admits FortiGate SSO bug still exploitable despite December patch
Fix didn’t quite do the job attackers spotted logging in First seen on theregister.com Jump to article: www.theregister.com/2026/01/23/fortinet_fortigate_patch/
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Fortinet Confirms Active FortiCloud SSO Bypass on Fully Patched FortiGate Firewalls
Fortinet has officially confirmed that it’s working to completely plug a FortiCloud SSO authentication bypass vulnerability following reports of fresh exploitation activity on fully-patched firewalls.”In the last 24 hours, we have identified a number of cases where the exploit was to a device that had been fully upgraded to the latest release at the time…
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Fortinet confirms critical FortiCloud auth bypass not fully patched
Days after admins began reporting that their fully patched firewalls are being hacked, Fortinet confirmed it’s working to fully address a critical FortiCloud SSO authentication bypass vulnerability that should have already been patched since early December. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/fortinet-confirms-critical-forticloud-auth-bypass-not-fully-patched/
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Fortinet Firewalls Hit With Malicious Configuration Changes
Automated infections of potentially fully patched FortiGate devices are allowing threat actors to steal firewall configuration files. First seen on darkreading.com Jump to article: www.darkreading.com/cloud-security/fortinet-firewalls-malicious-configuration-changes
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Hackers breach Fortinet FortiGate devices, steal firewall configs
Fortinet FortiGate devices are being targeted in automated attacks that create rogue accounts and steal firewall configuration data, according to cybersecurity company Arctic Wolf. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/hackers-breach-fortinet-fortigate-devices-steal-firewall-configs/
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Active Exploitation Of Fortinet SSO Flaw Targets Firewalls For Admin Takeover
Tags: access, authentication, cisa, cve, cvss, cyber, data-breach, exploit, firewall, flaw, fortinet, Internet, malicious, threat, vulnerabilityThreat actors actively exploit critical Fortinet vulnerabilities CVE-2025-59718 and CVE-2025-59719 to bypass FortiCloud SSO authentication on firewalls and proxies. These flaws allow unauthenticated attackers to craft malicious SAML messages, gaining admin access on internet-exposed devices. Fortinet disclosed them on December 9, 2025, with CVSS scores of 9.8, and CISA added CVE-2025-59718 to its Known Exploited…
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Attacks Target Freshly Patched, Critical Fortinet Flaws
Chinese Attackers Among Those Tied to Attempted Exploits of FortiSIEM Appliances. Critical vulnerabilities in edge devices are continuing to be discovered by security researchers and rapidly targeted by attackers. Lately, this includes a critical vulnerability in Fortinet’s FortiSIEM appliances, which Chinese and other hackers began targeting just two days post-patch. First seen on govinfosecurity.com Jump…
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Attacks Target Freshly Patched, Critical Fortinet Flaws
Chinese Attackers Among Those Tied to Attempted Exploits of FortiSIEM Appliances. Critical vulnerabilities in edge devices are continuing to be discovered by security researchers and rapidly targeted by attackers. Lately, this includes a critical vulnerability in Fortinet’s FortiSIEM appliances, which Chinese and other hackers began targeting just two days post-patch. First seen on govinfosecurity.com Jump…
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Fortinet admins report patched FortiGate firewalls getting hacked
Fortinet customers are seeing attackers exploiting a patch bypass for a previously fixed critical FortiGate authentication vulnerability (CVE-2025-59718) to hack patched firewalls. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/fortinet-admins-report-patched-fortigate-firewalls-getting-hacked/
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Secure web browsers for the enterprise compared: How to pick the right one
Tags: access, ai, android, api, attack, browser, business, chrome, cloud, computer, control, corporate, data, encryption, endpoint, fortinet, gartner, google, guide, identity, linux, login, malicious, malware, mfa, mobile, monitoring, network, okta, phishing, saas, service, siem, software, technology, threat, tool, training, vpn, windows, zero-trustEnable MFA at the beginning of any browser session by default.Handle isolation controls both with respect to the user’s session and to isolate any application from cross-infection. This means controlling the movement of data between the browser, your particular endpoint and the web application or applications involved.Control access to web destinations, either to allow or…
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âš¡ Weekly Recap: Fortinet Exploits, RedLine Clipjack, NTLM Crack, Copilot Attack & More
In cybersecurity, the line between a normal update and a serious incident keeps getting thinner. Systems that once felt reliable are now under pressure from constant change. New AI tools, connected devices, and automated systems quietly create more ways in, often faster than security teams can react. This week’s stories show how easily a small…