Memory overflow vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.

This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

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.

No EPSS score available.

Key SSVC decision points have not yet been added.

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 < 14.1-73.37
0 affected < 13.1-64.23
0 affected < 14.1-73.37 FIPS
0 affected < 13.1.37.279 FIPS and NDcPP
Citrix NetScaler Gateway unaffected
Version Status Constraints
0 affected < 14.1-73.37
0 affected < 13.1-64.23

Configuration 1 [-]

OR cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*

No data.

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Vendors Products
Citrix Subscribe
Netscaler Adc Subscribe
Netscaler Gateway Subscribe

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697096&articleTitle=Citrix_NetScaler_ADC_and_Citrix_NetScaler_Gateway_Security_Bulletin_for_CVE_2026_88771_CVE_2026_88772_CVE_2026_88773_CVE_2026_88774_CVE_2026_88775_CVE_2026_88776_CVE_2026_88777_and_CVE_2026_88778 cve-icon cve-icon
History

Tue, 29 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 28 Sep 2026 16:45:00 +0000

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

Mon, 28 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Citrix
Citrix netscaler Application Delivery Controller
Citrix netscaler Gateway
Weaknesses CWE-120
CPEs cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
Vendors & Products Citrix
Citrix netscaler Application Delivery Controller
Citrix netscaler Gateway
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Sun, 27 Sep 2026 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Sun, 27 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service Memory overflow vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service

Sun, 27 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Description Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Title Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
References
Metrics cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: NetScaler

Published:

Updated: 2026-09-29T15:15:39.206Z

Reserved: 2026-09-10T07:14:57.369Z

Link: CVE-2026-88775

cve-icon Vulnrichment

Updated: 2026-09-29T15:15:32.812Z

cve-icon NVD

Status : Modified

Published: 2026-09-27T17:16:56.750

Modified: 2026-09-29T16:17:13.663

Link: CVE-2026-88775

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-28T16:24:18Z

Weaknesses