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Quantencomputer: Neue Ansätze brechen Verschlüsselung mit weniger Qubits 7. April 2026
Zwei Veröffentlichungen nehmen klassische Verschlüsselung von zwei Seiten in die Zange. Das unterstreicht die Dringlichkeit eines Umstiegs auf Post-Quanten-Kryptografie. (Quantencomputer, Google)
Ingenieur gesteht: Kollegen aus IT ausgesperrt und Arbeitgeber erpresst 7. April 2026
Ein Ingenieur stiftet Chaos im Netzwerk seines Arbeitgebers und fordert ein Lösegeld von 20 Bitcoin. Vor einem US-Gericht gesteht er die Sabotage. (Cybercrime, Virtualisierung)
Rheinmetall und Co.: Datenhändler gefährden Rüstungsunternehmen in der Ukraine 7. April 2026
Händler bieten im Internet Bewegungsdaten von Millionen Smartphones an - eine Gefahr für Soldaten und Fabriken in der Ukraine. (Ukrainekrieg, Datenschutz)
Druckersystem: Cups-Lücken gefährden zahlreiche Linux-Systeme 7. April 2026
Ein Forscher hat KI-Agenten auf das Druckersystem Cups angesetzt. Zwei entdeckte Sicherheitslücken verleihen Angreifern Root-Zugriff aus der Ferne. (Sicherheitslücke, Drucker)
Zoff mit Microsoft: Frustrierter Forscher leakt Zero-Day-Exploit für Windows 7. April 2026
Ein Forscher fühlt sich offenbar von Microsoft nicht ernst genommen. Aus Frust hat er einen Exploit-Code für eine ungepatchte Windows-Lücke geleakt. (Sicherheitslücke, Microsoft)
Anzeige: T.I.S.P.-Zertifikatskurs für Informationssicherheit 7. April 2026
Ein T.I.S.P.-Zertifikatskurs bündelt Sicherheitsmanagement, Netzwerksicherheit und Kryptografie und bereitet auf die DEKRA-Prüfung vor. (Golem Karrierewelt, Server-Applikationen)
Irankrieg: USA schränken private Satellitenbilder ein 5. April 2026
Planet Labs und andere Anbieter schränken auf Druck der US-Regierung den Zugang zu Satelliten-Aufnahmen aus der Golfregion ein. (Satelliten, Security)

2026-004: Critical Vulnerability in SharePoint Exploited 25. März 2026
On 17 March 2026, Microsoft updated one of its January 2026 security advisories related to a remote code execution vulnerability in Microsoft SharePoint. Specifically, Microsoft raised the CVSS score and changed the FAQ section to indicate that the vulnerability could be exploited by an unauthenticated attacker. This vulnerability was added in the CISA's Known Exploited […]
2026-003: Multiple Vulnerabilities in Citrix NetScaler and Citrix ADC 23. März 2026
On 23 March 2026, Citrix published a security advisory addressing multiple vulnerabilities affecting NetScaler ADC and NetScaler Gateway. These vulnerabilities may lead to sensitive information disclosure and user session mix-up under specific configurations. At the time of writing, there is no public evidence of active exploitation. It is strongly recommended updating affected gateways, prioritising internet-facing […]
2026-002: Multiple Vulnerabilities in Cisco Products 26. Februar 2026
On 25 February 2026, Cisco released security advisories addressing multiple high and critical severity vulnerabilities in Cisco Catalyst SD-WAN controllers and Cisco SD-WAN Manager. If exploited, these vulnerabilities could allow attackers to gain administrative access to compromised systems. It is recommended to capture forensic evidence, hunt for indicators of compromise, and apply updates as soon […]
2026-001: Critical vulnerabilities in Ivanti EPMM 30. Januar 2026
On 29 January 2026, Ivanti released a security advisory addressing two critical vulnerabilities in their EPMM products. An attacker could exploit those flaws to achieve unauthenticated remote code execution on the vulnerable device. One of these vulnerabilities have been exploited in a limited number of cases.
2025-042: Critical Vulnerability in Cisco Secure Email and Web Manager 18. Dezember 2025
On December 17, 2025, Cisco released a security advisory for a critical vulnerability affecting Cisco Secure Email Gateway and Cisco Secure Email and Web Manager products. It is recommended to follow Cisco's recommendations to check whether vulnerable appliances have been compromised, and to remediate the issue. There is no patch available for this vulnerability yet.
2025-041: Critical Security Vulnerability in React Server Components 4. Dezember 2025
On December 3, 2025, the React Team publicly disclosed a critical security vulnerability affecting React Server Components (RSC) and related packages. The vulnerability allows for unauthenticated remote code execution (RCE) via maliciously crafted HTTP requests. It is recommended to update all affected component packages and any frameworks that integrate them.
2025-040: Critical Vulnerability in Windows Server Update Service (WSUS) 24. Oktober 2025
On October 23, 2025, Microsoft released an out-of-band update to address a critical vulnerability in Windows Server Update Service (WSUS). This vulnerability could allow a remote unauthenticated attacker to execute code on the targeted systems. A proof-of-concept is publicly available for this vulnerability. It is recommended to update as soon as possible.
2025-039: High Severity Vulnerability in FortiOS 15. Oktober 2025
On October 14, 2025, Fortinet released a security advisory addressing a high severity vulnerability in its FortiOS product. It is recommended updating affected products.
2025-038: Critical Vulnerabilities in Veeam Backup 15. Oktober 2025
On October 14, 2025, Veeam released a security advisory addressing multiple vulnerabilities including 2 critical in its Veeam Backup product. CERT-EU recommends updating affected software as soon as possible and following Veeam implementation best practices.
2025-037: Multiple Vulnerabilities in F5 Products 15. Oktober 2025
On October 15, 2025, F5 disclosed that a sophisticated nation-state actor breached its systems and maintained long-term persistent access into F5's infrastructure. This included access to BIG-IP product development source code and to information related to security vulnerabilities that had not yet been disclosed nor patched. F5 released patches on the same day to address […]