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CVE-2023-3519

Pierluigi Paganini October 09, 2023
Large-scale Citrix NetScaler Gateway credential harvesting campaign exploits CVE-2023-3519

IBM observed a credential harvesting campaign that is targeting Citrix NetScaler gateways affected by the CVE-2023-3519 vulnerability. IBM’s X-Force researchers reported that threat actors are conducting a large-scale credential harvesting campaign exploiting the recent CVE-2023-3519 vulnerability (CVSS score: 9.8) in Citrix NetScaler Gateways. At the end of July, Citrix warned customers that the CVE-2023-3519 flaw in NetScaler […]

Pierluigi Paganini August 16, 2023
Approximately 2000 Citrix NetScaler servers were backdoored in a massive campaign

A threat actor has compromised roughly 2,000 Citrix NetScaler servers exploiting a remote code execution tracked as CVE-2023-3519. In July Citrix warned customers of a critical vulnerability, tracked as CVE-2023-3519 (CVSS score: 9.8), in NetScaler Application Delivery Controller (ADC) and Gateway that is being actively exploited in the wild The vulnerability CVE-2023-3519 (CVSS score: 9.8) is a code injection that […]

Pierluigi Paganini August 02, 2023
Hackers already installed web shells on 581 Citrix servers in CVE-2023-3519 attacks

Researchers warn that hundreds of Citrix servers have been hacked in an ongoing campaign exploiting the RCE CVE-2023-3519. Security researchers from the non-profit organization Shadowserver Foundation reported that hundreds of Citrix Netscaler ADC and Gateway servers have already been compromised as part of an ongoing campaign exploiting the critical remote code execution (RCE) vulnerability CVE-2023-3519. […]

Pierluigi Paganini July 23, 2023
Shadowserver reported that +15K Citrix servers are likely vulnerable to attacks exploiting the flaw CVE-2023-3519

Researchers reported that more than 15000 Citrix servers exposed online are likely vulnerable to attacks exploiting the vulnerability CVE-2023-3519. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) this week warned of cyber attacks against Citrix NetScaler Application Delivery Controller (ADC) and Gateway devices exploiting recently discovered zero-day CVE-2023-3519. The Agency states that threat actors targeted a NetScaler […]

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    recent articles

    Hackers weaponize Shellter red teaming tool to spread infostealers

    Malware / July 09, 2025

    Microsoft Patch Tuesday security updates for July 2025 fixed a zero-day

    Security / July 08, 2025

    Italian police arrested a Chinese national suspected of cyberespionage on a U.S. warrant

    Intelligence / July 08, 2025

    U.S. CISA adds MRLG, PHPMailer, Rails Ruby on Rails, and Synacor Zimbra Collaboration Suite flaws to its Known Exploited Vulnerabilities catalog

    Hacking / July 08, 2025

    IT Worker arrested for selling access in $100M PIX cyber heist

    Cyber Crime / July 08, 2025

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