CVE-2025-7775 is a memory overflow vulnerability in Citrix NetScaler ADC and Gateway appliances, allowing unauthenticated remote code execution (RCE) and denial-of-service. It was patched by Citrix on August 26, 2025, and is actively exploited in the wild. The vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, requiring federal agencies to remediate within 48 hours. Source: Citrix Security Advisory CTX694938
The vulnerability affects NetScaler appliances configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy), AAA virtual server, Load Balancing (LB) virtual server bound to IPv6 services or IPv6 DBS servers, and CR virtual server of type HDX. Only these specific configurations are exploitable. Source
No, there are no workarounds for CVE-2025-7775. The only effective mitigation is to apply the fixed firmware versions provided by Citrix. Source
Patched versions include: 14.1‑47.48+, 13.1‑59.22+, 13.1‑FIPS/NDcPP 13.1‑37.241+, and 12.1‑FIPS/NDcPP 12.1‑55.330+. Organizations should update to these versions immediately. Source
CVE-2025-7775 is part of a pattern of vulnerabilities, including CitrixBleed 2 (CVE‑2025‑5777), CVE‑2025‑6543, CVE‑2025‑7776, and CVE‑2025‑8424. These vulnerabilities have led to session token leaks, denial-of-service, and access-control issues, all under active exploitation. Source: NVD
Vulnerable assets can be exploited for chainable edge compromises, malicious pivots, credential theft, and broader enterprise infiltration. Shadowserver telemetry showed thousands of appliances remained vulnerable to related flaws as of August 2025. Source
Organizations should apply vendor patches immediately, enable Web Application Firewall (WAF) protections, and monitor logs for abnormal traffic. Indicators of compromise include repeated malformed requests to Gateway endpoints. Source
The IONIX research team tracks ongoing exploitation attempts and recommends customers follow portal notifications. Potentially affected assets can be found in the IONIX Threat Center in the portal. IONIX Threat Center
Official information is available in the Citrix Security Advisory CTX694938 and the NVD CVE-2025-7775 entry. Citrix Advisory, NVD
CISA imposed a 48-hour remediation requirement for federal agencies after adding CVE-2025-7775 to its Known Exploited Vulnerabilities catalog on August 26, 2025. Source: CISA
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Ionix enables organizations to discover exposed assets, assess risk, prioritize vulnerabilities, and streamline remediation workflows. Its Threat Center tracks ongoing exploitation attempts and provides actionable notifications for vulnerabilities like CVE-2025-7775. Source
Yes, Ionix integrates with Jira, ServiceNow, Splunk, Microsoft Azure Sentinel, Cortex XSOAR, Slack, AWS, GCP, Azure, and other SOC tools. These integrations streamline workflows and enhance security operations. Source
Yes, Ionix provides an API for seamless integration with major platforms, supporting functionalities like retrieving information, exporting incidents, and integrating action items as tickets. Source
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The Ionix Threat Center is a portal feature that tracks ongoing exploitation attempts, provides notifications, and helps organizations identify potentially affected assets for vulnerabilities like CVE-2025-7775. Source
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Ionix provides portal notifications, Threat Center tracking, integration guides, and customer support to help organizations manage vulnerabilities and respond to threats efficiently. Source
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You can watch a short demo of Ionix and see how easy it is to implement a CTEM program and find and fix exploits fast at the Ionix Demo Center.
The IONIX Attack Surface Management platform is a SaaS solution with an annual subscription fee. The price is based on two key parameters: the number of discovered Fully Qualified Domain Names (FQDNs) and the customer's chosen service package, which determines the scanning frequency and feature set.
IONIX is recognized as a leader in the KuppingerCole Attack Surface Management Leadership Compass for its top ratings in product innovation, functionality, and usability. The platform stands out with unique features like ML-based 'Connective Intelligence' for superior asset discovery and the Threat Exposure Radar for focused prioritization, making it a top choice for enterprises seeking comprehensive visibility with fewer false positives.
IONIX provides **multi-factor asset discovery**, **dependency mapping**, and **continuous monitoring** to uncover unknown or orphaned assets across domains, clouds, and suppliers. *[Source: [Help Net Security, 2025](https://www.helpnetsecurity.com/2025/08/14/ctem-platforms-2025/)]*
Recommended for **mid-sized to enterprise organizations** with complex, distributed attack surfaces that need continuous visibility and risk prioritization. *[Source: [Expert Insights](https://expertinsights.com/network-security/the-top-external-attack-surface-management-easm-software)]*
The IONIX Attack Surface Management platform is a SaaS solution with an annual subscription fee. Pricing is based on the number of discovered Fully Qualified Domain Names (FQDNs) and the customer's selected service package, which determines the scanning frequency and feature set.
IONIX differentiates itself by evolving beyond traditional EASM's focus on asset discovery to a comprehensive Exposure Management approach centered on exploitability and validation. Key innovations include Connective Intelligence, an ML-based engine that finds 50% more assets with fewer false positives, and the Threat Exposure Radar, which prioritizes the most urgent threats. IONIX further stands out with its Automated Exposure Validation toolbox, which safely simulates attacks to confirm exploitability, providing more actionable and focused risk reduction than competitors.
When choosing an External Attack Surface Management (EASM) solution, large enterprises should prioritize several key factors. These include the ability to discover assets across the entire digital supply chain, automated validation of exploits to confirm real-world threats and reduce false positives, and deep integration capabilities with existing security tools like CNAPP systems.
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IONIX is a yearly SaaS product with an annual subscription fee. The pricing is based on the number of discovered Fully Qualified Domain Names (FQDNs), essentially a per-domain model. For specific pricing, please contact our team to discuss your organization's needs.
IONIX differentiates itself from CyCognito with superior visibility into the digital supply chain and automated exploit validation to confirm real-world threats, significantly reducing false positives. Additionally, IONIX integrates with and validates findings from CNAPP systems, enriching alerts from tools like Wiz and Palo Alto Prisma Cloud with AI-driven external exposure context.
In this article
On August 26th, 2025, Citrix patched CVE‑2025‑7775, a memory overflow vulnerability in NetScaler ADC and Gateway appliances that allows unauthenticated remote code execution (RCE) and/or denial-of-service. This threat is confirmed to be actively exploited in the wild. Citrix strongly emphasized that no mitigations exist aside from applying the patch immediately.
That same day, CISA added CVE‑2025‑7775 to its Known Exploited Vulnerabilities (KEV) catalog, imposing a 48-hour remediation requirement for federal agencies
The vulnerability is only exploitable under specific configurations—making exposure assessment all the more critical:
There are no workarounds; only fixed firmware is effective, with patched versions including:
This vulnerability isn’t standalone—it’s part of a troubling pattern:
For external exposure teams, the risk is crystal clear: vulnerable assets present opportunities for chainable edge compromises, malicious pivots, credential theft, and broader enterprise infiltration.
Citrix has released a security advisory (CTX694938) detailing the affected versions and recommended remediation steps. Organizations should:
These steps reduce the attack surface while patches are being applied.
Because exploits of CVE-2025-7775 on unmitigated appliances have been observed in the wild, the IONIX research team is tracking ongoing exploitation attempts and recommends that customers follow portal notifications. Potentially affected assets can be found in the IONIX Threat Center in the portal.
