CVE-2026-111341 - Vulnerability Details

- Memory overflow in client-certificate authentication can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway

Description

Memory overflow in client-certificate authentication can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway.

Published: 2026-11-13

Score: 8.7 High

EPSS: < 1% Very Low

KEV: No

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Citrix

NetScaler ADC

unaffected

Version	Status	Constraints
`0`	affected	< 14.1-73.57
`0`	affected	< 13.1-64.39
`0`	affected	< 14.1-73.58 FIPS
`0`	affected	< 13.1-37.293 FIPs and NDcPP

Citrix

NetScaler Gateway

unaffected

Version	Status	Constraints
`0`	affected	< 14.1-73.57
`0`	affected	< 13.1-64.39

No data.

Vendor Product Confidence Versions

Citrix

Gateway

100%

Version	Status	Scheme	Platform
`[0,14.1-73.57)`	affected	generic	—
`[0,13.1-64.39)`	affected	generic	—

Citrix

Netscaler Adc

100%

Version	Status	Scheme	Platform
`[0,14.1-73.57)`	affected	generic	—
`[0,13.1-64.39)`	affected	generic	—
`[0,14.1-73.58 FIPS)`	affected	generic	—
`[0,13.1-37.293 FIPs and NDcPP)`	affected	generic	—

Citrix

Netscaler Gateway

100%

Version	Status	Scheme	Platform
`[0,14.1-73.57)`	affected	generic	—
`[0,13.1-64.39)`	affected	generic	—

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Remediation

No solution or workaround provided in the CVE record.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00219.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305

History

Sat, 14 Nov 2026 05:45:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-120 CWE-787

Sat, 14 Nov 2026 04:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Citrix Citrix gateway Citrix netscaler Adc Citrix netscaler Gateway
Vendors & Products		Citrix Citrix gateway Citrix netscaler Adc Citrix netscaler Gateway

Fri, 13 Nov 2026 03:30:00 +0000

Type	Values Removed	Values Added
Description		Memory overflow in client-certificate authentication can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway.
Title		Memory overflow in client-certificate authentication can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway
References		https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305
Metrics		cvssV4_0 `{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}`

Subscriptions

Citrix Gateway Netscaler Adc Netscaler Gateway

MITRE

Status: PUBLISHED

Assigner: NetScaler

Published: 2026-11-13T03:08:23.331Z

Updated: 2026-11-13T03:08:23.331Z

Reserved: 2026-10-15T20:47:37.490Z

Link: CVE-2026-111341

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-11-13T04:17:36.653

Modified: 2026-11-13T04:17:36.653

Link: CVE-2026-111341

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-11-14T05:30:05Z

Weaknesses

CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787
Out-of-bounds Write

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Subscriptions

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