The vulnerability of the FortiCloud SSO authentication mechanism affects operating systems based on FortiOS, the Fortinet FortiManager device management software, the FortiAnalyzer event monitoring and analysis software, and the FortiProxy proxy server used for protecting against internet attacks. This vulnerability allows a perpetrator to gain unauthorized access to the device.
🗓️ 28 Jan 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 9 Views
| Reporter | Title | Published | Views | Family All 29 |
|---|---|---|---|---|
 | CVE-2026-24858 | 27 Jan 202619:18 | – | attackerkb |
 | CVE-2026-24858 | 27 Jan 202620:18 | – | circl |
 | Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability | 27 Jan 202600:00 | – | cisa_kev |
 | Fortinet Releases Guidance to Address Ongoing Exploitation of Authentication Bypass Vulnerability CVE-2026-24858 | 28 Jan 202612:00 | – | cisa |
| CISA Adds One Known Exploited Vulnerability to Catalog | 27 Jan 202612:00 | – | cisa |
 | Fortinet’s various products have security vulnerabilities | 27 Jan 202600:00 | – | cnnvd |
 | CVE-2026-24858 | 27 Jan 202619:18 | – | cve |
 | CVE-2026-24858 | 27 Jan 202619:18 | – | cvelist |
 | EUVD-2026-15989 | 25 Mar 202621:30 | – | euvd |
| EUVD-2026-4712 | 27 Jan 202619:18 | – | euvd |
10
Node
OR
| Source | Link |
|---|---|
| fortiguard | www.fortiguard.fortinet.com/psirt/FG-IR-26-060 |
| web | www.web.nvd.nist.gov/view/vuln/detail |
| fortiguard | www.fortiguard.com/psirt/FG-IR-26-060 |
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
28 Jan 2026 00:00Current
7.1High risk
Vulners AI Score7.1
CVSS 39.8
CVSS 210
EPSS0.85844