Citrix

Critical Citrix NetScaler Vulnerability Poised for Exploitation, Security Firms Warn

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Critical Citrix NetScaler Vulnerability Poised for Exploitation, Security Firms Warn 2026-03-24 at 14:02 By Ionut Arghire An out-of-bounds read vulnerability can be exploited remotely without authentication to read sensitive information from memory. The post Critical Citrix NetScaler Vulnerability Poised for Exploitation, Security Firms Warn appeared first on SecurityWeek. This article is an excerpt from SecurityWeek […]

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Cisco ISE, CitrixBleed 2 Vulnerabilities Exploited as Zero-Days: Amazon

Amazon, Cisco, Citrix, exploited, Featured, Vulnerabilities, Zero-Day /

Cisco ISE, CitrixBleed 2 Vulnerabilities Exploited as Zero-Days: Amazon 2025-11-13 at 11:57 By Ionut Arghire Amazon has seen a threat actor exploiting CVE-2025-20337 and CVE-2025-5777, two critical Cisco and Citrix vulnerabilities, as zero-days. The post Cisco ISE, CitrixBleed 2 Vulnerabilities Exploited as Zero-Days: Amazon appeared first on SecurityWeek. This article is an excerpt from SecurityWeek […]

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Citrix Patches Exploited NetScaler Zero-Day

Citrix, CVE-2025-7775, Network Security, Vulnerabilities /

Citrix Patches Exploited NetScaler Zero-Day 2025-08-27 at 14:51 By Ionut Arghire Zero-day exploited in the wild forces Citrix and CISA to push emergency patch deadlines for federal agencies. The post Citrix Patches Exploited NetScaler Zero-Day appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View Original Source

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NetScaler ADC/Gateway zero-day exploited by attackers (CVE-2025-7775)

0-day, backdoor, Citrix, Don't miss, Hot stuff, NetScaler, News, web shell /

NetScaler ADC/Gateway zero-day exploited by attackers (CVE-2025-7775) 2025-08-26 at 16:35 By Zeljka Zorz Three new vulnerabilities affecting (Citrix) NetScaler application delivery controller (ADC) and Gateway devices have been made public, one of which (CVE-2025-7775) has been targeted in zero-day attacks. “Exploits of CVE-2025-7775 on unmitigated appliances have been observed,” Citrix has confirmed, and released security […]

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Netscaler vulnerability was exploited as zero-day for nearly two months (CVE-2025-6543)

Citrix, Don't miss, Europe, Fortinet, Hot stuff, NCSC-NL, NetScaler, News, Shadowserver /

Netscaler vulnerability was exploited as zero-day for nearly two months (CVE-2025-6543) 2025-08-12 at 17:51 By Zeljka Zorz FortiGuard Labs has reported a dramatic spike in exploitation attempts targeting Citrix Bleed 2, a critical buffer over‑read flaw (CVE‑2025‑5777) affecting Citrix NetScaler ADC (Application Delivery Controller) and Gateway devices. Since July 28, 2025, they have detected over 6,000 exploitation […]

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Citrix delivers new tools for quantum-ready, anywhere work

Citrix, Industry news /

Citrix delivers new tools for quantum-ready, anywhere work 2025-07-31 at 09:26 By Industry News Citrix has released two new offerings to help enterprises provide secure application access for their entire workforce amid an evolving threat landscape. The first is its post-quantum cryptography (PQC) solution for NetScaler which addresses the emerging threat that quantum computing poses […]

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CitrixBleed 2: 100 Organizations Hacked, Thousands of Instances Still Vulnerable

Citrix, CitrixBleed 2, CitrixBleed2, exploited, Vulnerabilities /

CitrixBleed 2: 100 Organizations Hacked, Thousands of Instances Still Vulnerable 2025-07-18 at 13:18 By Ionut Arghire The CitrixBleed 2 vulnerability in NetScaler may expose organizations to compromise even if patches have been applied. The post CitrixBleed 2: 100 Organizations Hacked, Thousands of Instances Still Vulnerable appeared first on SecurityWeek. This article is an excerpt from […]

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CitrixBleed 2 Flaw Poses Unacceptable Risk: CISA

CISA KEV, Citrix, CitrixBleed 2, CitrixBleed2, exploited, Vulnerabilities /

CitrixBleed 2 Flaw Poses Unacceptable Risk: CISA 2025-07-14 at 17:58 By Ionut Arghire CISA considers the recently disclosed CitrixBleed 2 vulnerability an unacceptable risk and has added it to the KEV catalog. The post CitrixBleed 2 Flaw Poses Unacceptable Risk: CISA appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View Original Source

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Check for CitrixBleed 2 exploitation even if you patched quickly! (CVE-2025-5777)

Citrix, Don't miss, exploit, Horizon3.ai, Hot stuff, NetScaler, News, PoC, ReliaQuest, WatchTowr /

Check for CitrixBleed 2 exploitation even if you patched quickly! (CVE-2025-5777) 2025-07-08 at 18:32 By Zeljka Zorz With PoC exploits for CVE-2025-5777 (aka CitrixBleed 2) now public and reports of active exploitation of the flaw since mid-June, you should check whether your Citrix NetScaler ADC and/or Gateway instances have been probed and compromised by attackers. […]

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Thousands of Citrix NetScaler Instances Unpatched Against Exploited Vulnerabilities

Citrix, CitrixBleed 2, exploited, Vulnerabilities /

Thousands of Citrix NetScaler Instances Unpatched Against Exploited Vulnerabilities 2025-07-01 at 13:03 By Ionut Arghire Many Citrix NetScaler systems are exposed to attacks exploiting the vulnerabilities tracked as CVE-2025-5777 and CVE-2025-6543. The post Thousands of Citrix NetScaler Instances Unpatched Against Exploited Vulnerabilities appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View Original […]

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CitrixBleed 2 might be actively exploited (CVE-2025-5777)

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CitrixBleed 2 might be actively exploited (CVE-2025-5777) 2025-06-30 at 15:47 By Zeljka Zorz While Citrix has observed some instances where CVE-2025-6543 has been exploited on vulnerable NetScaler networking appliances, the company still says that they don’t have evidence of exploitation for CVE-2025-5349 or CVE-2025-5777, both of which have been patched earlier this month. CVE-2025-5777, in […]

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Evidence Suggests Exploitation of CitrixBleed 2 Vulnerability

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Evidence Suggests Exploitation of CitrixBleed 2 Vulnerability 2025-06-27 at 12:13 By Eduard Kovacs The Citrix NetScaler vulnerability tracked as CitrixBleed 2 and CVE-2025–5777 may be exploited in the wild for initial access. The post Evidence Suggests Exploitation of CitrixBleed 2 Vulnerability appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View Original Source

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Critical Citrix NetScaler Flaw Exploited as Zero-Day

Citrix, exploited, NetScaler, Vulnerabilities, Zero-Day /

Critical Citrix NetScaler Flaw Exploited as Zero-Day 2025-06-26 at 10:17 By Ionut Arghire Citrix has released patches for a critical vulnerability in NetScaler ADC and NetScaler Gateway exploited as a zero-day. The post Critical Citrix NetScaler Flaw Exploited as Zero-Day appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View Original Source

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Critical Citrix NetScaler bug fixed, upgrade ASAP! (CVE-2025-5777)

Citrix, Don't miss, enterprise, Hot stuff, NetScaler, News, security update, vulnerability /

Critical Citrix NetScaler bug fixed, upgrade ASAP! (CVE-2025-5777) 2025-06-23 at 14:14 By Zeljka Zorz Citrix has fixed a critical vulnerability (CVE-2025-5777) in NetScaler ADC and NetScaler Gateway reminiscent of the infamous and widely exploited CitrixBleed flaw. The vulnerabilities have been privately disclosed and there is no indication that they are under active exploitation. Nevertheless, the […]

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Critical Vulnerability Patched in Citrix NetScaler

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Critical Vulnerability Patched in Citrix NetScaler 2025-06-18 at 16:20 By Ionut Arghire Citrix has released patches for critical- and high-severity vulnerabilities in NetScaler and Secure Access Client and Workspace for Windows. The post Critical Vulnerability Patched in Citrix NetScaler appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View Original Source

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Citrix Patches Critical NetScaler Console Vulnerability

Citrix, cloud security, NetScaler, Patch Tuesday, Vulnerabilities /

Citrix Patches Critical NetScaler Console Vulnerability 2024-07-10 at 16:46 By Ionut Arghire Citrix rolls out patches for multiple security vulnerabilities, including critical and high-severity issues in the NetScaler product line. The post Citrix Patches Critical NetScaler Console Vulnerability appeared first on SecurityWeek. This article is an excerpt from SecurityWeek RSS Feed View Original Source

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Cybersecurity fears drive a return to on-premise infrastructure from cloud computing

Citrix, Cloud, cybersecurity, News, report, survey /

Cybersecurity fears drive a return to on-premise infrastructure from cloud computing 2024-02-22 at 06:02 By Help Net Security 42% of organizations surveyed in the US are considering or already have moved at least half of their cloud-based workloads back to on-premises infrastructures, a phenomenon known as cloud repatriation, according to Citrix. The survey showed that […]

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Citrix Warns NetScaler ADC Customers of New Zero-Day Exploitation

Citrix, exploited, Vulnerabilities, Zero-Day /

Citrix Warns NetScaler ADC Customers of New Zero-Day Exploitation 2024-01-17 at 12:16 By Eduard Kovacs Citrix is aware of attacks exploiting two new NetScaler ADC and Gateway zero-day vulnerabilities tracked as CVE-2023-6548 and CVE-2023-6549. The post Citrix Warns NetScaler ADC Customers of New Zero-Day Exploitation appeared first on SecurityWeek. This article is an excerpt from […]

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Citrix Bleed leveraged to steal data of 35+ million Comcast Xfinity customers

Citrix, Comcast, cyberattack, data breach, data theft, Don't miss, hacking, Hot stuff, News, telecommunications, USA, vulnerability, Xfinity /

Citrix Bleed leveraged to steal data of 35+ million Comcast Xfinity customers 20/12/2023 at 13:32 By Helga Labus Telecommunications company Comcast has confirmed a breach that exposed personal information of more than 35.8 million of Xfinity customers. Exploiting Citrix Bleed to breach Xfinity CVE-2023-4966 (aka Citrix Bleed) – an information disclosure vulnerability in Citrix NetScaler […]

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How LockBit used Citrix Bleed to breach Boeing and other targets

ACSC, CISA, Citrix, Don't miss, FBI, Hot stuff, NetScaler, News, Ransomware, vulnerability /

How LockBit used Citrix Bleed to breach Boeing and other targets 22/11/2023 at 16:47 By Zeljka Zorz CVE-2023-4966, aka “Citrix Bleed”, has been exploited by LockBit 3.0 affiliates to breach Boeing’s parts and distribution business, and “other trusted third parties have observed similar activity impacting their organization,” cybersecurity and law enforcement officials have confirmed on […]

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