Exploit / PoCcriticalExploited in the wild

Citrix NetScaler Under Active Recon for CVE-2026

The Hacker Newsby @TheHackersNewsMar 31, 2026 · 06:09 UTC (Mar 31, 2026)3 min read3

Read at thehackernews.com

Analyze this story with Vani AIImpact, who is affected and what defenders should do, in a new chat

CVEs: CVE-2026-3055 CVE-2023-4966 CVE-2025-5777 CVE-2025-6543 CVE-2025-7775

Tags: cve-2023-4966 cve-2025-5777 cve-2025-6543 cve-2025-7775 cve-2026-3055 exploit

Vulnerabilities mentioned

All

CVE	Vulnerability	CVSS	EPSS	Signals	Published
CVE-2023-4966	Info-Disclosure Buffer Overflow (CitrixBleed) in Citrix NetScaler ADC/Gateway	7.5	100%	KEVRansomware	Oct 10, 2023 KEV Oct 18, 2023
CVE-2025-5777	Out-of-Bounds Read (Memory Overread) in Citrix NetScaler ADC and Gateway	9.3	100%	KEVRansomware	Jun 17, 2025 KEV Jul 10, 2025
CVE-2025-6543	Memory Buffer Overflow in Citrix NetScaler ADC and Gateway Exploited in the Wild	9.2	10%	KEV	Jun 25, 2025 KEV Jun 30, 2025
CVE-2025-7775	Actively Exploited Memory Overflow RCE/DoS in Citrix NetScaler ADC/Gateway	9.2	21%	KEV	Aug 26, 2025 KEV Aug 26, 2025
CVE-2026-3055	Out-of-Bounds Read in Citrix NetScaler ADC and Gateway When Used as SAML IDP	9.3	91%	KEVPoC	Mar 23, 2026 KEV Mar 30, 2026

From the original article

3 min read at thehackernews.com

 Ravie Lakshmanan  Mar 28, 2026 Vulnerability / Network Security A recently disclosed critical security flaw impacting Citrix NetScaler ADC and NetScaler Gateway is witnessing active reconnaissance activity, according to Defused Cyber and watchTowr . The vulnerability, CVE-2026-3055 (CVSS score: 9.

The Hacker News

By @TheHackersNews · thehackernews.com

Read the full article at The Hacker News

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.