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CVE-2026-3055

exploited in the wild☆ pin

CVSS

9.8

Reports

17

First seen

Mar 23, 2026

Last seen

Oct 9, 2026

Affected product

Citrix NetScaler

Associated actors

knaithe / KnYuan ×3 knaithe ×2 Chinese-speaking actor (Hermes Agent/DeepSeek operator) ×1 Handala Hack ×1 Operation STANDOFF ×1 ShinyHunters ×1 Toy Ghouls ×1 UAT-10147 ×1 APT28 ×1 xplogs22 ×1 APT-C-60 ×1

Recent reports

Citrix warns admins to patch new NetScaler RCE flaw immediately

Bleeping ComputerOct 9, 2026 Critical

CISA Orders Federal Agencies to Patch Exploited Citrix NetScaler Flaws by September 30

Bleeping ComputerSep 28, 2026 High

August 2026 CVE Landscape: 73 High-Impact Vulnerabilities and AI-Assisted Exploitation Trends

Recorded Future InsiktSep 8, 2026 Critical

Critical Citrix NetScaler authentication bypass exploited in active attacks

Bleeping ComputerSep 4, 2026 High

CISA orders federal agencies to patch Citrix NetScaler RCE flaw by Saturday

Bleeping ComputerAug 27, 2026 High

Citrix urges admins to patch new NetScaler flaws as soon as possible

Bleeping ComputerAug 20, 2026 Critical

CISA Flags Langflow RCE, Tomcat, and N-central Flaws as Actively Exploited

The Hacker NewsAug 5, 2026 High

Chinese threat actor uses DeepSeek AI to autonomously attack vulnerable servers

Bleeping ComputerJul 31, 2026 High

Chinese Threat Actor Uses DeepSeek AI via Hermes Agent for Autonomous Exploitation

The Hacker NewsJul 31, 2026 High

ThreatsDay: AI-Powered Hacking, 370 Chrome Flaws, SonicWall Attacks, DNS Hijacking + 22 More Stories

The Hacker NewsJul 30, 2026 High

Chinese-Speaking Threat Actor Deploys AI-Driven Autonomous Cyberattacks Using DeepSeek and Hermes Agent

Palo Alto Unit 42Jul 30, 2026 High

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

The Hacker NewsJul 1, 2026 High

Citrix Patches Six NetScaler Vulnerabilities Including Memory Disclosure Flaw

CyberScoopJun 30, 2026 High

Multiple Vulnerabilities in Citrix NetScaler Products (A26-03-31)

GovCERT.HKMar 31, 2026 High

NetScaler ADC and NetScaler Gateway Out-of-Bounds Read Vulnerability (CVE-2026-3055)

NICS TaiwanMar 30, 2026 Critical

Threat Intelligence Report – 30 March: FBI Director Account Breach, Port Ransomware, Supply Chain Compromises

Check Point ResearchMar 30, 2026 High

Multiple Vulnerabilities in Citrix NetScaler and Citrix ADC

CERT-EU AdvisoriesMar 23, 2026

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