RadioCSIRT - Your Daily Cyber Security Brief

Your Cybersecurity Update for Monday, 1 December 2025 (Ep.37)


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Welcome to your daily cybersecurity briefing. Mattermost Patches Silent Security Flaw CERT-FR reports an “unspecified security issue” in Mattermost Server (MMSA-2025-00545). While technical details remain undisclosed by the vendor, the vulnerability impacts multiple branches including 10.11, 10.12, 11.0, and 11.1. Given the platform’s role in centralizing sensitive internal communications, administrators are urged to apply the […]
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RadioCSIRT - Your Daily Cyber Security BriefBy RadioCSIRT