New NetScaler Zero-Day Exploited in Targeted Attacks Can Knock SAML Deployments Offline

Citrix has released security updates for a high-severity security flaw in NetScaler ADC and NetScaler Gateway that has been exploited as part of targeted zero-day attacks. The vulnerability, tracked as CVE-2026-88779 , carries a CVSS score of 8.7 out of 10.0. "CVE-2026-88779 is a memory overflow...

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities KEV Catalog, based on evidence of active exploitation. CVE-2026-88779 Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability This type of vulnerability is a frequent attack...

Vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway

Citrix has identified a vulnerability in NetScaler ADC and NetScaler Gateway. This vulnerability involves a memory overflow in versions of NetScaler ADC and NetScaler Gateway that are older than 14.1-73.41 and 13.1-64.28. This vulnerability can lead to a Denial of Service DoS attack, thereby...

Citrix NetScaler ADC and Citrix NetScaler Gateway Security Bulletin for CVE-2026-88779

Severity - High Description of Problem A vulnerability has been discovered in Citrix NetScaler ADC formerly Citrix ADC and Citrix NetScaler Gateway formerly Citrix Gateway. Refer below for further details. Affected Versions: The following supported versions of NetScaler are affected by the...

Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

Citrix NetScaler ADC formerly Citrix ADC and Citrix NetScaler Gateway formerly Citrix Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service...

VulnCheck KEV: CVE-2026-88779

Citrix NetScaler ADC formerly Citrix ADC and Citrix NetScaler Gateway formerly Citrix Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service...

Exploit for Improper Input Validation in Citrix Netscaler_Application_Delivery_Controller

pitscaler.com Static briefing served by the Cloudflare Worker...

Citrix NetScaler Post-Exploitation Payload Creates Superuser, Maps Web Shell to CSS-Like URLs

Threat actors have been observed exploiting a critical pre-authentication command injection vulnerability in Citrix NetScaler ADC and NetScaler Gateway to drop web shells and attempt theft of configuration data. LevelBlue's Threat Hunt Operations & Research THOR team, which analyzed the...

Vulnerabilities in NetScaler ADC and NetScaler Gateway

Citrix has identified 8 vulnerabilities in NetScaler ADC and NetScaler Gateway. The following supported versions of Citrix NetScaler ADC and Citrix NetScaler Gateway are vulnerable: - Citrix NetScaler ADC and Citrix NetScaler Gateway 14.1 before version 14.1-73.37 - Citrix NetScaler ADC and Citri...

Attackers Exploit NetScaler Flaw for Root Access, Deploy WHIPSHOT and SLAPSHOT

Unknown threat actors have been observed exploiting a newly patched security flaw in Citrix NetScaler ADC and NetScaler Gateway appliances to target organizations in North America and Europe. The activity, observed by Mandiant Consulting and Google Threat Intelligence Group GTIG in September 2026...

Citrix NetScaler CVE-2026-88772 Exploit Details Show Pre-Auth Path to Shellcode Execution

Cybersecurity researchers have disclosed technical details of a recently patched critical security flaw in Citrix NetScaler ADC and Gateway that has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-88772 CVSS score: 9.5, has been described as a memory overflow bu...

Exploit for Improper Input Validation in Citrix Netscaler_Application_Delivery_Controller

cve-2026-88771-hunt A quick script...

Citrix NetScaler CVE-2026-88773 Detect

Detects Citrix NetScaler ADC/Gateway builds likely affected by CVE-2026-88773 HTTP request/response smuggling, CWE-444. Confirms NetScaler presence and parses appliance firmware against CTX697096 fixed builds 14.1-73.37+, 13.1-64.23+. Does not send smuggling probes. !/usr/bin/env python3 -- codin...

Citrix NetScaler CVE-2026-88771 Detect

Detects Citrix NetScaler ADC/Gateway instances likely affected by CVE-2026-88771. Confirms NetScaler presence, parses appliance build when exposed, and checks whether the AAA login path accepts the pitboss/PPE log trigger pattern used by nsmonuploadderr.pl. !/usr/bin/env python3 -- coding: utf-8 ...

Citrix NetScaler CVE-2026-88772 Detect

Detects Citrix NetScaler ADC/Gateway builds likely affected by CVE-2026-88772 memory buffer restriction flaw enabling RCE/DoS. Confirms NetScaler presence and pre-CTX697096 firmware where exposed. !/usr/bin/env python3 -- coding: utf-8 -- """Detect Citrix NetScaler CVE-2026-88772 memory corruptio...

Citrix NetScaler CVE-2026-19490 Detect

Detects Citrix NetScaler ADC/Gateway deployments likely exposed to CVE-2026-19490 SAML alternate-path authentication bypass. Requires Gateway/AAA virtual server usage; flags affected 13.1/14.1 builds before 13.1-63.21 / 14.1-73.32 and reachable SAML endpoints. !/usr/bin/env python3 -- coding: utf...

PT-2026-102621

CVE-2026-88771 & CVE-2026-887722: RCE and/or DoS in Citrix NetScaler ADC and NetScaler Gateway, both rated 9.5 ‍🔥 Citrix disclosed two exploited vulnerabilities. The first CVE-2026-88771 allows an unauthenticated attacker to run arbitrary commands. It affects all NetScaler ADC and NetScaler Gateway...

⚡ Weekly Recap: $387M Crypto Hack, Citrix Exploits, AI Agents Go Off-Script, and More Threats

A domain used as harmless placeholder text showed up in roughly 1,700 repositories. Then somebody registered it and started serving malicious lures. That is the kind of week this was: forgotten assumptions turning into live attack surface. Elsewhere, weak service accounts, old bugs, exposed...

Exploit for CVE-2026-88772

CVE-2026-88772 - Citrix NetScaler ADC/Gateway DTLS memory over...

CISA Says Attackers Are Exploiting Two Critical Citrix NetScaler Flaws Globally

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Sunday added two critical Citrix NetScaler ADC and Gateway flaws to its Known Exploited Vulnerabilities KEV catalog, following reports of active exploitation. The vulnerabilities are listed below - CVE-2026-88771 CVSS score: 9.5 - ...