CRITICAL CISA KEV

CVE-2026-8452

CVSS v3

9.8

CRITICAL

EPSS Score

1.0 %

exploit probability, as of 2026-10-19

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-8452 yet.

Full record on NVD

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: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-06-30
Last Modified: 2026-07-01

Frequently asked questions

What is CVE-2026-8452?

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 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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