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Citrix Patches Six NetScaler Flaws Allowing File Read and Denial-of-Service

BACKGROUND
2 SIGNALSFIRST DETECTED 1 July 2026
Narrative synthesis pending — 2 signals collected.
How the story developed
Other feeds and industry voices
4 Oct
Citrix patches NetScaler SAML zero-day exploited in attacks

Citrix has released emergency updates for a new NetScaler denial-of-service vulnerability tracked as CVE-2026-88779 that has been exploited in zero-day attacks, with researchers

REPORT · WHAT · BleepingComputerOPEN STORY
28 Sept
Exploitation of vulnerabilities affecting Citrix NetScaler ADC and Citrix NetScaler Gateway

The NCSC is urging UK organisations to promptly mitigate vulnerabilities affecting Citrix NetScaler ADC and Gateway, two of which are being actively exploited.

REPORT · WHAT · NCSC UKOPEN STORY
27 Sept
Warning: Two Unpatched Citrix NetScaler RCE Zero-Days Under Active Exploitation

Two new unpatched zero-day vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway appliances that allow remote code execution are being actively exploited in the wild,

REPORT · WHO · The Hacker NewsOPEN STORY
29 Sept
Hackers exploit Citrix NetScaler zero-day to deploy web shells

Cybersecurity firms say attackers exploited the Citrix NetScaler CVE-2026-88772 zero-day to deploy custom web shells and tunneling malware, gain root access, steal credentials,

REPORT · HOW · BleepingComputerOPEN STORY
19 Oct
Beyond the patch: Protecting your NetScaler gateway against future vulnerabilities

CVE-2026-88771 lets attackers run commands on NetScaler Gateway before anyone signs in. Patching takes time most teams don't have, so the sign-in decision has to move in front of

REPORT · HOW · Cloudflare BlogOPEN STORY
27 Sept
Citrix admins warned to shut down NetScalers over 2 exploited zero-days

Two unpatched Citrix NetScaler zero-day vulnerabilities are reportedly being exploited in attacks, with cybersecurity agencies, security researchers, and IT providers privately

REPORT · WHAT · BleepingComputerOPEN STORY
15 Apr
April Patch Tuesday Fixes Critical Flaws Across SAP, Adobe, Microsoft, Fortinet, and More

A number of critical vulnerabilities impacting products from Adobe, Fortinet, Microsoft, and SAP have taken center stage in April's Patch Tuesday releases. Topping the

REPORT · HOW · The Hacker NewsOPEN STORY
1 Oct
Upgrading past CVE-2026-88772: version mapping and rollout order for NetScaler ADC and Gateway

<h1> Upgrading past CVE-2026-88772: version mapping and rollout order for NetScaler ADC and Gateway </h1> <p>The patching decision for the Citrix NetScaler bulletin CTX697096 of

REPORT · WHERE · Dev.toOPEN STORY
Sources
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