Citrix has released a critical security bulletin addressing a vulnerability affecting NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway). Citrix NetScaler is an all-in-one load balancer, web application firewall (WAF), virtual private network (VPN) gateway and SSL offloading tool for web applications.
- CVE-2025-6543 is a ‘memory overflow’ vulnerability with a CVSSv4 base score of 9.2. Successful exploitation could allow a remote unauthenticated attacker to gain unintended control flow and perform denial-of-service (DoS) in NetScaler ADC and NetScaler Gateway. NetScaler is only vulnerable to CVE-2025-6543 when configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server.
Read more…
Source: NHS Digital
Sign up for our Newsletter
The latest news and insights delivered right to your inbox.
Related:
- TeleMessage, a modified Signal clone used by US government officials, has been hacked
May 5, 2025
A hacker has exploited a vulnerability in TeleMessage, which provides modded versions of encrypted messaging apps such as Signal, Telegram, and WhatsApp, to extract archived messages and other data relating to U.S. government officials and companies who used the tool, 404 Media reported. TeleMessage came into the spotlight last week after it was reported that former ...
- Actively Exploited SAP NetWeaver Visual Composer Vulnerability Enables Remote Code Execution (CVE-2025-31324)
May 2, 2025
The SonicWall Capture Labs threat research team became aware of an arbitrary file upload vulnerability in the Metadata Uploader component of SAP NetWeaver Visual Composer, assessed its impact, and developed mitigation measures. SAP NetWeaver serves as a robust technology platform that functions as both an integration hub and application layer, enabling businesses to unify data, processes, ...
- Analyzing CVE-2025-31191: A macOS security-scoped bookmarks-based sandbox escape
May 1, 2025
In April 2024, Microsoft uncovered a vulnerability in macOS that could allow specially crafted codes to escape the App Sandbox and run unrestricted on the system. An attacker could create an exploit to escape the App Sandbox without user interaction required for any sandboxed app using security-scoped bookmarks. With the ability to run code unrestricted on ...
- AI Agents are here. So are the threats.
May 1, 2025
Agentic applications are programs that leverage AI agents — software designed to autonomously collect data and take actions toward specific objectives — to drive their functionality. As AI agents are becoming more widely adopted in real-world applications, understanding their security implications is critical. This article investigates ways attackers can target agentic applications, presenting nine concrete attack ...
- Active exploitation of SAP NetWeaver Visual Composer CVE-2025-31324
April 28, 2025
On Thursday, April 24, enterprise resource planning company SAP published a CVE (and a day later, an advisory behind login) for CVE-2025-31324, a zero-day vulnerability in NetWeaver Visual Composer that carries a CVSSv3 score of 10. The vulnerability arises from a missing authorization check in Visual Composer’s Metadata Uploader component that, when successfully exploited, allows unauthenticated ...
- Commvault Releases Security Updates for Command Center
April 24, 2025
Commvault has released a security advisory to address a critical vulnerability in its Command Center Platform. Command Center is Commvault’s all-in-one solution for managing Commvault services within a corporate environment. CVE-2025-34028 is a path traversal vulnerability with a CVSSv3 base score of 10.0, and if exploited could allow an unauthenticated attacker to upload ZIP files. The ...