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Vulnerability record · CVE-2026-19489 · published 19 August 2026

CVE-2026-19489: Classic buffer overflow vulnerability

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.

8.8 CVSS 4.0 High EPSS 3.2% · top 12.4% CWE-120 · Classic buffer overflow Awaiting Analysis
8.8CVSS 4.0 base score
3.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
1 Sep 2026Last modified by NVD

Description

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/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:

References

LinkTags
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696939

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-19489), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.