Security bulletins Warnings and recommendations from national cyber security agencies, newest first. Each brief is at most 120 words, bottom line first, and links to the publication it was written from.
All sources BSI (DE) warning CERT Polska warning CERT-EU advisory CERT-SE advisory CISA advisory CISA alert MAS (SG) guidelines NCSC (UK) guidance NCSC (UK) news NSM (NO) warning SAMSIK (DK) news BSI (DE) · Warning · 04 Aug 2025
Version 1.2: Microsoft SharePoint - Massive Ausnutzung einer Zero-Day Schwachstelle Read the original at www.bsi.bund.de ↗ (in German)
BSI (DE) · Warning · 08 Jul 2025
Version 1.1: Citrix NetScaler ADC & NetScaler Gateway - Kritische Sicherheitslücken geschlossen und teils aktiv ausgenutzt Read the original at www.bsi.bund.de ↗ (in German)
BSI (DE) · Warning · 13 Jun 2025
Version 1.1: Ivanti EPMM - Zero-Day Schwachstellen werden aktiv ausgenutzt Read the original at www.bsi.bund.de ↗ (in German)
NCSC (UK) · Guidance · 10 Jun 2025
New DNS Check service in MyNCSC is being expanded to include more DNS related issues Read the original at www.ncsc.gov.uk ↗
NCSC (UK) · Guidance · 20 May 2025
Decommissioning assets Read the original at www.ncsc.gov.uk ↗
NCSC (UK) · Guidance · 07 May 2025
Software Security Code of Practice - Assurance Principles and Claims (APCs) Read the original at www.ncsc.gov.uk ↗
BSI (DE) · Warning · 11 Apr 2025
Version 1.0: Fortinet FortiOS - Angreifende installierten persistenten Lesezugriff auf Firewalls Read the original at www.bsi.bund.de ↗ (in German)
BSI (DE) · Warning · 09 Apr 2025
Version 1.1: Ivanti Connect Secure - Kritische Schwachstelle in End-of-Support und ungepatchten Systemen ausgenutzt Read the original at www.bsi.bund.de ↗ (in German)
NCSC (UK) · Guidance · 03 Apr 2025
New feature: View and manage Early Warning findings in MyNCSC Read the original at www.ncsc.gov.uk ↗
BSI (DE) · Warning · 01 Apr 2025
Information zur Umstellung beim Versand von Warnungen Read the original at www.bsi.bund.de ↗ (in German)
BSI (DE) · Warning · 25 Mar 2025
Version 1.0: Kubernetes - Kritische Schwachstelle im Ingress NGINX Controller ermöglicht Clusterübernahme Read the original at www.bsi.bund.de ↗ (in German)
NCSC (UK) · Guidance · 20 Mar 2025
Timelines for migration to post-quantum cryptography Read the original at www.ncsc.gov.uk ↗
NCSC (UK) · Guidance · 11 Mar 2025
New DNS Check service now available in MyNCSC Read the original at www.ncsc.gov.uk ↗
NCSC (UK) · Guidance · 06 Feb 2025
Network security fundamentals Read the original at www.ncsc.gov.uk ↗
NCSC (UK) · Guidance · 04 Feb 2025
Guidance on digital forensics and protective monitoring specifications for producers of network devices and appliances Read the original at www.ncsc.gov.uk ↗
BSI (DE) · Warning · 31 Jan 2025
Version 1.0: SonicWall SonicOS - Proof-of-Concept Exploit für Schwachstelle im SSLVPN veröffentlicht Read the original at www.bsi.bund.de ↗ (in German)
BSI (DE) · Warning · 23 Jan 2025
Version 1.0: SonicWall SMA 1000 Serie - Zero-Day Schwachstelle in Management Konsole geschlossen Read the original at www.bsi.bund.de ↗ (in German)
BSI (DE) · Warning · 14 Jan 2025
Version 1.0: Microsoft Windows - Kritische Schwachstelle in Windows OLE Read the original at www.bsi.bund.de ↗ (in German)
BSI (DE) · Warning · 14 Jan 2025
Version 1.0: Fortinet FortiOS & FortiProxy - Aktive Ausnutzung einer Zero-Day Schwachstelle Read the original at www.bsi.bund.de ↗ (in German)
BSI (DE) · Warning · 09 Jan 2025
Version 1.0: Ivanti Connect Secure - Zero-Day Angriffe beobachtet Read the original at www.bsi.bund.de ↗ (in German)