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CVE-2026-8451

exploited in the wild☆ pin

CVSS

8.8

Reports

6

First seen

Jun 30, 2026

Last seen

Jul 6, 2026

Affected product

Citrix NetScaler ADC and NetScaler Gateway

Associated actors

BlackField ×1 ChocoPoC campaign operators ×1 Gentlemen ×1 North Korea-aligned (PolinRider campaign) ×1 TeamPCP ×1 Vect ransomware group ×1

Recent reports

Weekly Threat Intelligence Report – July 6: Ransomware Attacks, AI Threats, and Critical Vulnerabilities

Check Point ResearchJul 6, 2026 High

Citrix NetScaler ADC and Gateway Multiple Vulnerabilities

HKCERTJul 3, 2026 High

CVE-2026-8451 – Citrix NetScaler ADC/Gateway Insufficient Input Validation

Canadian Centre AlertsJul 2, 2026 High

Multiple Vulnerabilities in Citrix NetScaler ADC and Gateway Products

GovCERT.HKJul 2, 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

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