Netscaler News Articles
Recent news articles refferecing the vendors vulnerabilities.
‘Advanced’ hacker seen exploiting Cisco, Citrix zero-days
The hackers notably used custom malware and were exploiting CVE-2025-5777 — now known colloquially as “Citrix Bleed Two” — before it was disclosed publicly in July.
ThreatsDay Bulletin: Cisco 0-Days, AI Bug Bounties, Crypto Heists, State-Linked Leaks and 20 More Stories
Global cyber roundup: new AI bug bounties, malware threats, GDPR backlash, Cisco zero-days, data leaks, and rising attacks on key infrastructure.
Amazon Uncovers CVE-2025-20337 & CVE-2025-5777 Exploits
Amazon reports APTs exploiting CVE-2025-20337 and CVE-2025-5777 zero-day flaws in Cisco and Citrix systems.
Is It CitrixBleed4? Well, No. Is It Good? Also, No. (Citrix NetScaler Memory Leak & RXSS CVE-2025-12101)
There’s an elegance to vulnerability research that feels almost poetic - the quiet dance between chaos and control. It’s the art of peeling back the layers of complexity, not to destroy but to understand; to trace the fragile threads that hold systems together and see where they might
Amazon: Cisco, Citrix 0-days indicate 'advanced' attacker
An "advanced" attacker exploited CitrixBleed 2 and a max-severity Cisco Identity Services Engine (ISE) bug as zero-days to deploy custom malware, according to Amazon Chief Information Security Officer CJ...
Amazon Uncovers Attacks Exploited Cisco ISE and Citrix NetScaler as Zero-Day Flaws
Amazon reports dual zero-day exploits in Cisco ISE and Citrix ADC used to deploy custom malware.
Amazon discovers APT exploiting Cisco and Citrix zero-days | Amazon Web Services
The Amazon threat intelligence team has identified an advanced threat actor exploiting previously undisclosed zero-day vulnerabilities in Cisco Identity Service Engine (ISE) and Citrix systems. The campaign used custom malware and demonstrated access to multiple undisclosed vulnerabilities. This dis...
NetScaler ADC and Gateway Vulnerable: Urgent Updates to Prevent XSS Attacks
NetScaler has issued a security bulletin for an XSS vulnerability affecting its NetScaler ADC and NetScaler Gateway products. Urgent updates are recommended.
Hackers use new HexStrike-AI tool to rapidly exploit n-day flaws
Hackers are increasingly using a new AI-powered offensive security framework called HexStrike-AI in real attacks to exploit newly disclosed n-day flaws.
Over 28,000 Citrix devices vulnerable to new exploited RCE flaw
More than 28,200 Citrix instances are vulnerable to a critical remote code execution vulnerability tracked as CVE-2025-7775 that is already being exploited in the wild.
Citrix fixes critical NetScaler RCE flaw exploited in zero-day attacks
Citrix fixed three NetScaler ADC and NetScaler Gateway flaws today, including a critical remote code execution flaw tracked as CVE-2025-7775 that was actively exploited in attacks as a zero-day vulnerability.
Citrix Under Active Attack Again with Another Zero-Day
The flaw is one of three the company disclosed affecting its NetScaler ADC and NetScaler Gateway technologies.
Citrix Patches Three NetScaler Flaws, Confirms Active Exploitation of CVE-2025-7775
Citrix patches CVE-2025-7775 exploited in NetScaler ADC; fixes three flaws with no workarounds.
Pennsylvania attorney general's email, site down after cyberattack
The Office of the Pennsylvania Attorney General has announced that a recent cyberattack has taken down its systems, including landline phone lines and email accounts.
Over 3,000 NetScaler devices left unpatched against CitrixBleed 2 bug
Over 3,300 Citrix NetScaler devices remain unpatched against a critical vulnerability that allows attackers to bypass authentication by hijacking user sessions, nearly two months after patches were released.
Dutch NCSC Confirms Active Exploitation of Citrix NetScaler CVE-2025-6543 in Critical Sectors
Dutch NCSC warns of CVE-2025-6543 Citrix attacks on critical organizations, urging urgent patches to prevent further breaches.
Netherlands: Citrix Netscaler flaw CVE-2025-6543 exploited to breach orgs
The Netherlands' National Cyber Security Centre (NCSC) is warning that a critical Citrix NetScaler vulnerability tracked as CVE-2025-6543 was exploited to breach
CVE-2025-5777 – Pre-Auth Memory Leak in Citrix NetScaler (CitrixBleed 2) - CYFIRMA
Published On : 2025-07-18 EXECUTIVE SUMMARY CVE‑2025‑5777 is a critical information disclosure vulnerability in Citrix NetScaler ADC and Gateway appliances, caused by unsafe memory handling in the...
Updates on Actively Exploited Information Disclosure Vulnerability “Citrix Bleed 2” in Citrix NetScaler ADC and Gateway I Arctic Wolf
In late June 2025, Arctic Wolf issued a security bulletin addressing a critical out-of-bounds read vulnerability in Citrix NetScaler ADC and Gateway that Citrix disclosed, tracked as CVE-2025-5777.
Citrix Bleed 2 exploited weeks before PoCs as Citrix denied attacks
A critical Citrix NetScaler vulnerability, tracked as CVE-2025-5777 and dubbed
Hackers Started Exploiting CitrixBleed 2 Vulnerability Before Public PoC Disclosure
Researchers detected an active exploitation of CVE-2025-5777, dubbed CitrixBleed 2, nearly two weeks before a public proof-of-concept surfaced.
Hackers Exploited CitrixBleed 2 Vulnerability Before Public PoC Release
This memory overread vulnerability in Citrix NetScaler appliances demonstrates how sophisticated attackers can identify
Hackers Actively Exploited CitrixBleed 2 Flaw Ahead of PoC Disclosure
Researchers have discovered that threat actors began exploiting CitrixBleed 2 vulnerability nearly two weeks before a public proof-of-concept was released.
CISA Adds One Known Exploited Vulnerability to Catalog | CISA
CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-5777(link is external) Citrix NetScaler ADC and Gateway...
CitrixBleed 2 beckons sweeping alarm as exploits spread across the globe
The number of Citrix customers impacted by CVE-2025-5777 remains unknown, but researchers have already observed more than 11.5 million attack attempts, targeting thousands of sites.