Cyber Briefing: 2026.01.23

GitLab auth bypasses, phishing installs RMM backdoors, new ransomware strains, supply-chain leaks, DeFi hacks, GDPR fines surge, and policy shifts emerge. This article has been indexed from CyberMaterial Read the original article: Cyber Briefing: 2026.01.23

CISA Updates KEV Catalog with 4 Critical Vulnerabilities Following Ongoing Exploits

The Cybersecurity and Infrastructure Security Agency (CISA) has expanded its Known Exploited Vulnerabilities (KEV) Catalogue with four critical security flaws affecting widely-used enterprise software and development tools. All vulnerabilities were added on January 22, 2026, with a standardized deadline of…

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…