— Unscored

Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

CVE-2026-8452 Exploited

Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability which could lead to denial of service.

Being exploited in the wild

Catalogued 26 August 2026 · US federal remediation deadline 29 August 2026

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…

Exploit code is also public: Public PoC

Public PoCsecurekomodo/citrixInspector96 stars
Public PoCwatchtowrlabs/watchTowr-vs-Citrix-Netscaler-PreAuth-RCE-CVE-2026-845265 stars
Public PoCBishopFox/CVE-2026-8452-check1 stars
Public PoCmaxprog-svg/CitrixBleedCVE-2026-8452-2025-5777
Public PoCtechupdate24/citrix-netscaler-cve-2026-8452-rce

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Yes — listed in the CISA KEV catalog
Exploit availability: CISA KEV, Public PoC
Published: 26 August 2026
Last updated: 26 August 2026
Affected: Citrix · NetScaler ADC and NetScaler Gateway
Weakness: CWE-119

At the source

CISA KEV

References

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

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Query this programmatically

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