Summary
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Citrix Systems NetScaler ADC und Gateway ausnutzen, um Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen oder andere, nicht näher spezifizierte Auswirkungen auszulösen.
Product
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.
Vulnerabilities 6
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High 8.8
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service
Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server
KEV Aug 26, 2026 -
High 8.8
Insufficient input validation leading to memory overread
Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDP
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High 8.8
Multiple Memory overflow vulnerabilities leading to unpredictable or erroneous behavior and Denial of Service
Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if NetScaler ADC is configured as an LB of type Oracle OR NetScaler ADC is configured as a DNS Proxy OR NetSca…
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High 8.7
Denial of service via malformed HTTP/2 requests
Denial of service via malformed HTTP/2 requests in NetScaler ADC and NetScaler Gateway if HTTP/2 is enabled in HTTP Profile and associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
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High 7.1
Arbitrary File Read (Unauthenticated)
Arbitrary File Read (Unauthenticated) in NetScaler ADC and NetScaler Gateway if the access to NSIP, Cluster Management IP or SNIP with management access is enabled
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Medium 6.9CVE-2026-10817 Public exploit
Insufficient input validation leading to memory overread
Insufficient input validation leading to memory overread in NetScaler ADC and NetScaler Gateway if the TCP TimeStamp is enabled in TCP Profile and is associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
Revision history
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#3
CVE-2026-8452 wird ausgenutzt
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#2
PoC aufgenommen
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#1
Initiale Fassung
References
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NetScaler ADC and NetScaler Gateway Security Bulletin vom 2026-06-30
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604
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PoC auf Watchtowr.com vom 2026-07-01
https://labs.watchtowr.com/citrixbleed-to-infinity-and-beyond-citrix-netscaler-pre-auth-memory-overread-cve-2026-8451/
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CISA KEV CVE-2026-8452 vom 2026-08-26
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search=CVE-2026-8452&field_date_added_wrapper=all&field_cve=&sort_by=field_date_added&items_per_page=20&url