Exploitation active confirmée

Ajoutée au catalogue CISA KEV le 26/08/2026, correctif exigé avant le 29/08/2026 pour les agences fédérales américaines.

Action requise : Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Description officielle (NVD)

Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server

Preuves de concept publiques (5)

Dépôts tiers non vérifiés, parfois piégés. Ne les exécutez jamais en production : uniquement dans un environnement de test isolé.

securekomodo/citrixInspector · ★ 96 · 20/07/2023
Passively fingerprint Citrix ADC / NetScaler ADC & Gateway builds and detect known CVEs — CVE-2023-3519, CitrixBleed 2/3, CVE-2026-8452, and CVE-2026-88771/88772 (KEV)
watchtowrlabs/watchTowr-vs-Citrix-Netscaler-PreAuth-RCE-CVE-2026-8452 · ★ 65 · 14/08/2026
CVE-2026-8452 PreAuth RCE
BishopFox/CVE-2026-8452-check · ★ 1 · 20/08/2026
Safely detect Citrix NetScaler CVE-2026-8452
maxprog-svg/CitrixBleedCVE-2026-8452-2025-5777 · ★ 0 · 30/08/2026
CitrixBleed Exploit Tool - CVE-2025-5777 & CVE-2026-8452. Unauthenticated remote memory read from Citrix NetScaler ADC & Gateway. Steal admin session tokens, extract nsroot hashes, dump secrets, and b
techupdate24/citrix-netscaler-cve-2026-8452-rce · ★ 0 · 27/09/2026
A complete guide and workflow for integrating Agile sprints with DevOps CI/CD pipelines.

Références

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604 , Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8452 , US Government Resource

En bref

Éditeur	Citrix
Produit	NetScaler ADC and NetScaler Gateway
Publiée le	30/06/2026
Modifiée le	27/08/2026
CVSS	8.8 (v4.0)
EPSS	1,01 % (centile 63)
CWE	CWE-119

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS : probabilité estimée d'exploitation dans les 30 prochains jours.