Citrix NetScaler Multiple Vulnerabilities
Summary
CERT-Bund has issued a security advisory for Citrix NetScaler, detailing multiple critical vulnerabilities (CVSS score 10.0) that allow remote attackers to disclose information and take over user sessions. Affected versions include specific releases of NetScaler ADC and Gateway prior to 14.1-66.59 and 13.1-62.23/37.262.
What changed
This advisory from CERT-Bund (WID-SEC-2026-0836) highlights critical vulnerabilities in Citrix NetScaler ADC and Gateway products, specifically versions prior to 14.1-66.59 and 13.1-62.23/37.262. These vulnerabilities, with a CVSS base score of 10.0, enable remote attackers to potentially disclose sensitive information and hijack user sessions.
Organizations utilizing affected Citrix NetScaler appliances must immediately review their systems and apply available mitigations or updates. Failure to address these critical vulnerabilities could lead to significant security breaches, including unauthorized access and data compromise. The advisory indicates that remote attacks are possible, and a temporal score of 8.7 suggests active exploitation or high exploitability.
What to do next
- Review affected Citrix NetScaler ADC and Gateway versions.
- Apply available security updates and mitigations.
- Monitor for active exploitation attempts.
Archived snapshot
Mar 24, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
[WID-SEC-2026-0836] Citrix Systems NetScaler: Mehrere Schwachstellen CVSS Base Score 10.0 (kritisch) CVSS Temporal Score 8.7 (hoch) Remoteangriff ja Datum 23.03.2026 Stand 24.03.2026 Mitigation ja
Betroffene Systeme
Betriebssystem
- Appliance
Produktbeschreibung
Citrix NetScaler ist eine integrierte Lösung für die Beschleunigung, das Traffic Management und die Sicherheit von Web-Applikationen. Citrix Access Gateway ist ein universell einsetzbares SSL-VPN. Advanced Access Control (AAC) ermöglichen es Administratoren, Zugriffsregeln für das Access Gateway festzulegen.
Produkte
23.03.2026
- Citrix Systems NetScaler ADC <14.1-66.59
Citrix Systems NetScaler Gateway <14.1-66.59
Citrix Systems NetScaler ADC <13.1-62.23
Citrix Systems NetScaler Gateway <13.1-62.23
Citrix Systems NetScaler ADC FIPS <13.1-37.262
Citrix Systems NetScaler ADC NDcPP <13.1-37.262
Angriff
Angriff
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Citrix Systems NetScaler ausnutzen, um Informationen offenzulegen und um eine Benutzersitzung zu übernehmen. CVE Informationen Versionshistorie Feedback zum Advisory geben
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Source
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Source document text, dates, docket IDs, and authority are extracted directly from CERT-Bund.
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