Combine AI-driven security operations, multi-signal attack surface coverage and 24/7 Elite Threat Hunters to help you take your security program to the next level.
Get unlimited Incident Response with threat suppression guarantee - anytime, anywhere.
CTEM and advisory programs that identify security gaps and build proactive strategies to address them.
Multi-agent Generative AI system embedded across eSentire’s Security Operations platform to scale human expertise.
Open XDR with Agentic AI & machine learning that eliminates noise, enables real-time detection and response, and automatically blocks threats.
See what our SOC sees, review investigations, and see how we are protecting your business.
Seamless integrations and threat investigation across your existing tech stack.
24/7 SOC-as-a-Service with unlimited threat hunting and incident handling.
Proactive threat intelligence, original threat research and a world-class team of seasoned industry veterans.
Extend your team capabilities and prevent business disruption with expertise from eSentire.
We balance automated blocks with rapid human-led investigations to manage threats.
Flexible MDR pricing and packages that fit your unique security requirements.
Entry level foundational MDR coverage
Comprehensive Next Level MDR from eSentire
Next Level MDR with Cyber Risk Advisors to continuously advance your security program
Stop ransomware before it spreads.
Meet regulatory compliance mandates.
Detect and respond to zero-day exploits.
End misconfigurations and policy violations.
Defend third-party and supply chain risk.
Prevent disruption by outsourcing MDR.
Adopt a risk-based security approach.
Meet insurability requirements with MDR.
Protect your most sensitive data.
Build a proven security program.
Operationalize cyber threat intelligence.
Stop identity-based cyberattacks.
THE THREAT On July 8th, 2025, Koi Security disclosed an extensive campaign dubbed RedDirection, involving 18 cross-platform browser extensions available on Google Chrome and…
Jun 26, 2025THE THREATOn June 25th, 2025, Citrix disclosed a critical vulnerability identified as CVE-2025-6543 (CVSS score: 9.2), impacting NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway…
eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 2000+ organizations in 80+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
We provide sophisticated cybersecurity solutions for Managed Security Service Providers (MSSPs), Managed Service Providers (MSPs), and Value-Added Resellers (VARs). Find out why you should partner with eSentire, the Authority in Managed Detection and Response, today.
Multi-Signal MDR with 300+ technology integrations to support your existing investments.
24/7 SOC-as-a-Service with unlimited threat hunting and incident handling.
We offer three flexible MDR pricing packages that can be customized to your unique needs.
The latest security advisories, blogs, reports, industry publications and webinars published by TRU.
Compare eSentire to other Managed Detection and Response vendors to see how we stack up against the competition.
See why 2000+ organizations globally have chosen eSentire for their MDR Solution.
On June 25th, 2025, Citrix disclosed a critical vulnerability identified as CVE-2025-6543 (CVSS score: 9.2), impacting NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway). CVE-2025-6543 is a memory overflow vulnerability that could lead to unintended control flow and cause a Denial of Service (DoS) condition. Citrix has specified that successful exploitation requires the affected NetScaler appliances to be configured either as a Gateway (such as VPN virtual server, ICA Proxy, CVPN, or RDP Proxy) or as an AAA virtual server.
CVE-2025-6543 has been confirmed to be actively exploited in the wild. Given the severity of this vulnerability, it is critical for organizations using affected versions of NetScaler ADC and NetScaler Gateway to immediately apply the relevant security patches to mitigate the risk of exploitation.
NetScaler Application Delivery Controller (ADC) and NetScaler Gateway are network appliances serving different purposes. NetScaler ADC is designed to optimize, secure, and manage web application traffic. NetScaler Gateway is a remote access tool, providing Single Sign-On (SSO) and authentication for remote users accessing network resources, especially within Citrix environments. NetScaler ADC and NetScaler Gateway are widely adopted by organizations across both on-premises and cloud environments.
While Citrix confirmed that they have observed exploits for CVE-2025-6543, no technical details or Proof-of-Concept (PoC) exploit code have been publicly disclosed. Citrix has stated that Secure Private Access on-premises and hybrid deployments utilizing NetScaler instances are also impacted by the vulnerability. The disclosure of CVE-2025-6543 comes shortly after Citrix patched two other vulnerabilities in NetScaler ADC and NetScaler Gateway on June 17th, 2025.
Given the confirmed exploitation of CVE-2025-6543 and the history of threat actors rapidly leveraging Citrix vulnerabilities in past incidents, it is critical that organizations promptly apply the recommended patches and mitigations.
Impacted Versions List:
References:
[1] https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788
[2] https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX693420
[3] https://nvd.nist.gov/vuln/detail/CVE-2025-6543
[4] https://nvd.nist.gov/vuln/detail/CVE-2025-5777
[5] https://nvd.nist.gov/vuln/detail/CVE-2025-5349
[6] https://doublepulsar.com/citrixbleed-2-electric-boogaloo-cve-2025-5777-c7f5e349d206