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CVE-2026-19489: Vulnerability in NetScaler ADC

0
High
Published: 08/19/2026 (08/19/2026, 12:45:16 UTC)
Source: CVE Database V5
Vendor/Project: NetScaler
Product: ADC

Description

CVE-2026-19489 is a high-severity vulnerability affecting NetScaler ADC and NetScaler Gateway products. It impacts versions from 13.1 through 63.21 and from 14.1 through 73.32. The vulnerability has a CVSS 4.0 base score of 8.8, indicating a significant security risk. No public exploits are currently known. There is no explicit vendor advisory or patch information provided in the input data.

CVSS v4.0

Score 8.8high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
Low
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
Low
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

Affected software

NetScaler

ADC

Affected versions
>=14.1 <=73.32>=13.1 <=63.21

NetScaler

Gateway

Affected versions
>=14.1 <=73.32>=13.1 <=63.21
GitHub Actionsmore threats →ai
netscaler/ADC
pkg:github/netscaler/ADC
Affected versions
=13.1=14.1>=13.1 <=63.21>=14.1 <=73.32

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 09:32:19 UTC

Technical Analysis

This vulnerability affects NetScaler ADC and NetScaler Gateway products in versions >=13.1 <=63.21 and >=14.1 <=73.32. It is identified as CWE-120, which typically relates to buffer overflow issues. The CVSS 4.0 vector indicates the vulnerability is remotely exploitable without privileges or user interaction, with high impact on availability and low impact on confidentiality and integrity. The vulnerability is published and assigned by NetScaler but no patch or remediation details are provided in the input.

Potential Impact

The vulnerability allows remote attackers to potentially cause a high impact on the availability of affected NetScaler ADC and Gateway systems without requiring privileges or user interaction. Confidentiality and integrity impacts are low. This could lead to denial of service or system disruption.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround information is provided in the available data.

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Technical Details

Data Version
5.2
Assigner Short Name
NetScaler
Date Reserved
2026-08-10T17:39:54.968Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6a85aa9bacd9273b4918fe1f

Added to database: 08/19/2026, 13:07:39 UTC

Last enriched: 09/11/2026, 09:32:19 UTC

Last updated: 10/03/2026, 08:35:47 UTC

Views: 89

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