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CRITICAL CISA KEV

CVE-2026-8452

CVSS v3

9.8

CRITICAL

EPSS Score

0.4 %

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

Description

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

CISA Known Exploited Vulnerability

Date Added
2026-08-26
Patch Due Date
2026-08-29
Ransomware Use
Unknown

Technical details

CVSS v3 Vector
3.1
Published
2026-06-30
Last Modified
2026-07-01

Frequently asked questions

What is CVE-2026-8452?

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

Is CVE-2026-8452 actively exploited?

Yes. CVE-2026-8452 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-08-29.

What is the CVSS score for CVE-2026-8452?

CVE-2026-8452 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.

Is CVE-2026-8452 affecting your environment?

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