Wissen verständlich erklärt

IT-Wiki & technische Wissensbasis.

Kurze, verständliche Erklärungen zu IT-Begriffen, Sicherheit, Netzwerk, Entwicklung und Compliance – ergänzt um Code, KI-Wissen und aktuelle Sicherheitsinformationen.

Intelligente Suche: durchsucht alle öffentlichen Portalbereiche – Wiki, Leistungen, Online-Tools, Codebibliothek, KI-Wissen, Wissensupdates und Security-Intel. Tippfehler, Abkürzungen und typische Synonyme werden berücksichtigt.

Aktuelles Wissensupdate · CISA · Known Exploited Vulnerabilities

CVE-2026-8452 · Citrix NetScaler ADC and NetScaler Gateway · Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability which could lead to denial of service. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen26.08.2026 00:00
AIKI-Systeme & KürzelLLM, RAG, MCP, Agenten, Bild-/Audio-KI und wichtige Begriffe verständlich erklärt.MKI-ModellübersichtAktuelle Modellfamilien, Einsatzgebiete, Reasoning- und Konfigurationshinweise.PPromptbibliothekAdministrierbare Vorlagen für Business, Coding, Sicherheit, Recherche, RAG und Bilder.
Automatisch gepflegt

Neue Erkenntnisse & wichtige Updates

Dieser Bereich ergänzt das redaktionelle Wiki aus vertrauenswürdigen Quellen. Er wird nicht blind täglich verändert: Neue Einträge entstehen nur, wenn eine Quelle tatsächlich neue oder geänderte Informationen liefert.

Security & Schwachstellen20.10.2026

CVE-2026-106931 · EG Secure Solutions SiteGuard Server Edition · EG Secure Solutions SiteGuard Server Edition OS Command Injection Vulnerability

EG Secure Solutions SiteGuard Server Edition contains an OS command injection vulnerability which may allow an attacker to execute arbitrary OS commands with root or SYSTEM privileges on the system running the affected product. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen20.10.2026

CVE-2026-96656 · Plex Media Server · Plex Media Server External Control of File Name or Path Vulnerability

Plex Media Server contains an external control of file name or path vulnerability which can allow an admin user to write arbitrary files that may be executed on load. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96654, and CVE-2026-96655. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen20.10.2026

CVE-2026-96655 · Plex Media Server · Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability

Plex Media Server contains a server-side request forgery (SSRF) vulnerability that could allow an authenticated user to request arbitrary internal or external addresses via the '/video/:/transcode/universal' path parameter. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96654, and CVE-2026-96656. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen20.10.2026

CVE-2026-96654 · Plex Media Server · Plex Media Server Improper Neutralization of Encoded URI Schemes in a Web Page Vulnerability

Plex Media Server contains an improper neutralization of encoded URI schemes in a web page vulnerability that could allow an attacker to call other plugins' functions and supply their own parameters. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96655, and CVE-2026-96656. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen20.10.2026

CVE-2026-96652 · Plex Media Server · Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability

Plex Media Server contains a server-side request forgery (SSRF) vulnerability which could allow an attacker using any X-Plex-Token value to include a full URL in the 'protocol' parameter and force the Plex server to POST to the attacker's chosen destination. This vulnerability can be chained with CVE-2026-96654, CVE-2026-96655, and CVE-2026-96656. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen20.10.2026

CVE-2026-110936 · Siemens Software Center · Siemens Software Center Uncontrolled Search Path Element Vulnerability

Siemens Software Center contains an uncontrolled search path element vulnerability that could allow an authenticated local attacker to place a specially crafted DLL in a directory that the application searches, leading to arbitrary code execution with the privileges of the affected application. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen16.10.2026

CVE-2026-102764 · BeyondTrust Remote Support · BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability

BeyondTrust Remote Support contains an authentication bypass by spoofing vulnerability that could allow a remote attacker to perform file operations on the appliance. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen16.10.2026

CVE-2025-61624 · Fortinet Multiple Products · Fortinet Multiple Products Path Traversal Vulnerability

FortiOS, FortiPAM, FortiProxy, and FortiSwitchManager contain a path traversal vulnerability that may allow an authenticated attacker with admin profile and at least read-write permissions to write or delete arbitrary files via specific CLI commands. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen15.10.2026

CVE-2026-21589 · Atlassian Multiple Products · Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability

Multiple Atlassian products (Bitbucket Data Center ,Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible and Fisheye) contain a files or directories accessible to external parties vulnerability which could allow an unauthenticated attacker to access specific files within the web application root directory in affected versions. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen14.10.2026

CVE-2026-105134 · Ahsay AhsayCBS · Ahsay AhsayCBS Command Injection Vulnerability

Ahsay AhsayCBS contains a command injection vulnerability that could allow a remote attacker to execute operating system commands via manipulation of the random parameter in the Replication Receiver component’s /rps/api/json/UpdateReceivers.do endpoint. This vulnerability can be chained with CVE-2026-105133. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen14.10.2026

CVE-2026-76519 · Cisco Secure Email Gateway · Cisco Secure Email Gateway Relative Path Traversal Vulnerability

Cisco Secure Email Gateway contains a relative path traversal vulnerability that could allow an unauthenticated, remote attacker to write arbitrary files on the underlying operating system. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Security & Schwachstellen14.10.2026

CVE-2026-105133 · Ahsay AhsayCBS · Ahsay AhsayCBS Improper Authentication Vulnerability

Ahsay AhsayCBS contains an improper authentication vulnerability that could allow a remote attacker to bypass authentication via manipulation of the random parameter in the API component’s checkSysPwd function. This vulnerability can be chained with CVE-2026-105134. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Codebibliothek:CSS (3)HTML (3)Java (4)JavaScript (2)JSON (3)PHP (5)PowerShell (43)Python (7)VBA (28)XML (2)Alle Snippets →
Compliance

Compliance

1 Einträge

Compliance

NIS2

NIS2 ist ein europäischer Rahmen für ein höheres gemeinsames Cybersicherheitsniveau.

Einfach erklärt →
Entwicklung

Entwicklung

2 Einträge

Entwicklung

API

Eine API ist eine definierte Schnittstelle, über die Software miteinander kommuniziert.

Einfach erklärt →
IT-Grundlagen

IT-Grundlagen

1 Einträge

IT-Grundlagen

Backup

Was ein Backup ist und warum eine Kopie auf demselben Gerät nicht genügt.

Einfach erklärt →
KI

KI

10 Einträge

KI

Künstliche Intelligenz (KI)

Was KI umfasst und warum nicht jedes automatisierte System automatisch KI ist.

Einfach erklärt →
KI

LLM – Large Language Model

Was große Sprachmodelle leisten und wo ihre Grenzen liegen.

Einfach erklärt →
KI

Generative KI

KI-Systeme, die neue Texte, Bilder, Audio, Video oder Code erzeugen.

Einfach erklärt →
KI

RAG – Retrieval-Augmented Generation

Wie KI-Antworten mit eigener Wissensbasis verbunden werden.

Einfach erklärt →
KI

Prompt Engineering

Wie klare Prompts die Qualität und Reproduzierbarkeit verbessern.

Einfach erklärt →
KI

MCP – Model Context Protocol

Standardisierte Verbindung zwischen KI-Anwendungen, Daten und Werkzeugen.

Einfach erklärt →
KI

Embeddings

Wie Inhalte als Vektoren für semantische Suche repräsentiert werden.

Einfach erklärt →
KI

Halluzinationen und Verifikation

Warum plausibel klingende KI-Antworten trotzdem falsch sein können.

Einfach erklärt →
KI

Fine-Tuning, LoRA und RAG

Wann Prompting, RAG oder Modellanpassung sinnvoll ist.

Einfach erklärt →
Netzwerk

Netzwerk

2 Einträge

Netzwerk

DNS

DNS übersetzt Domainnamen in technische Zieladressen und stellt weitere Informationen bereit.

Einfach erklärt →
Sicherheit

Sicherheit

4 Einträge

Sicherheit

VPN

Ein VPN erstellt einen geschützten logischen Verbindungstunnel zwischen Netzen oder Geräten.

Einfach erklärt →
Sicherheit

Multi-Faktor-Authentifizierung

MFA ergänzt ein Passwort um mindestens einen weiteren unabhängigen Faktor.

Einfach erklärt →
Sicherheit

Firewall

Firewalls steuern erlaubte und unerwünschte Netzwerkverbindungen.

Einfach erklärt →
Sicherheit

TLS und HTTPS

TLS schützt die Verbindung zwischen Browser und Server vor Mitlesen und Manipulation.

Einfach erklärt →
WA