CRITICALVulnerability
Global

Citrix NetScaler Under Active Recon for CVE-2026-3055 (CVSS 9.3) Memory Overread Bug

Saturday, March 28, 2026 at 09:11 AM UTC·Source: The Hacker News

Updated: Thursday, April 2, 2026 at 05:46 PM UTC

Executive Summary

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: 9.3), refers to a case of insufficient input validation leading to memory overread, which an attacker could exploit to leak potentially sensitive information. Per

Analysis

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: 9.3), refers to a case of insufficient input validation leading to memory overread, which an attacker could exploit to leak potentially sensitive information. Per

Indicators of Compromise (1)

CVE (1)
CVE-2026-3055
NVDMITRE CVE
Source Attribution

Originally published by The Hacker News on Mar 28, 2026.

Related Threats

MEDIUMVulnerability

Geopolitics, AI, and Cybersecurity: Insights From RSAC 2026

AI-driven threats, global leadership shifts, and the future of cybersecurity in a rapidly evolving landscape were among the discussions at RSAC 2026 Conference.

Dark Reading
MEDIUMVulnerability

House Dems decry confirmed ICE usage of Paragon spyware

The trio of Democrats weren’t satisfied with Immigration and Customs Enforcement answers, and criticized the spyware’s use. The post House Dems decry confirmed ICE usage of Paragon spyware appeared first on CyberScoop .

CyberScoop
MEDIUMVulnerability

Not Toying Around: Hasbro Attack May Take 'Weeks' to Remediate

The company's 8-K filing notes "unauthorized access" and that it's activated business continuity plans and taken some systems offline.

Dark Reading