A brief daily summary of what is important in information security. The podcast is published every weekday and designed to get you ready for the day with a brief, usually 5 minute long, summary of current network security related events. The content is late breaking, educational and based on listener input as well as on input received by the SANS Internet Stormcenter. You may submit questions and comments via our contact form at https://isc.sans.edu/contact.html .
SANS Stormcast Monday, January 26th, 2026: FortiOS SSO Vuln Updates; Outlook OOB Update; VMware vCenter Exploited
January 25, 2026
4:21
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Analysis of Single Sign-On Abuse on FortiOS
Fortinet released an advisory. FortiOS devices are vulnerable if configured with any SAML integration, not just FortiCloud
https://www.fortinet.com/blog/psirt-blogs/analysis-of-sso-abuse-on-fortios
Outlook OOB Update
Microsoft released a non-security OOB Update for Outlook, fixing an issue introduced with this months security patches.
https://support.microsoft.com/en-us/topic/january-24-2026-kb5078127-os-builds-26200-7628-and-26100-7628-out-of-band-cf5777f6-bb4e-4adb-b9cd-2b64df577491
VMware vCenter Server Vulnerabilities Exploited (CVE-2024-37079, CVE-2024-37080, CVE-2024-37081)
A VMWare vCenter vulnerability patched last June is now actively exploited.
https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/24453