CVE-2026-88776: Vulnerability in Citrix NetScaler ADC
Memory overflow vulnerability 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 to unpredictable or erroneous behavior or Denial of Service
AI Analysis
Technical Summary
This vulnerability involves a memory overflow in Citrix NetScaler ADC and Gateway products. Affected versions include ADC before 14.1-73.37, before 13.1-64.23, and their FIPS and NDcPP variants, as well as Gateway versions before 14.1-73.37 and 13.1-64.23. The overflow can lead to unpredictable or erroneous behavior, including Denial of Service. The CVSS 4.0 score is 8.8, indicating a high severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on availability.
Potential Impact
Successful exploitation can cause unpredictable or erroneous behavior in the affected Citrix NetScaler ADC and Gateway products, including Denial of Service. This can disrupt network services relying on these devices.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor vendor communications for updates and consider mitigating exposure by limiting access to affected devices where possible.
CVE-2026-88776: Vulnerability in Citrix NetScaler ADC
Description
Memory overflow vulnerability 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 to unpredictable or erroneous behavior or Denial of Service
CVSS v4.0
Score 8.8high
Affected software
Citrix NetScaler
ADC
Citrix NetScaler
Gateway
pkg:github/citrix/netscaler-adcRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a memory overflow in Citrix NetScaler ADC and Gateway products. Affected versions include ADC before 14.1-73.37, before 13.1-64.23, and their FIPS and NDcPP variants, as well as Gateway versions before 14.1-73.37 and 13.1-64.23. The overflow can lead to unpredictable or erroneous behavior, including Denial of Service. The CVSS 4.0 score is 8.8, indicating a high severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on availability.
Potential Impact
Successful exploitation can cause unpredictable or erroneous behavior in the affected Citrix NetScaler ADC and Gateway products, including Denial of Service. This can disrupt network services relying on these devices.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor vendor communications for updates and consider mitigating exposure by limiting access to affected devices where possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- NetScaler
- Date Reserved
- 2026-09-10T07:14:57.369Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab948d1f7a7c541063df7bc
Added to database: 09/27/2026, 16:48:17 UTC
Last enriched: 09/27/2026, 17:03:03 UTC
Last updated: 09/28/2026, 02:48:50 UTC
Views: 13
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