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CVE-2026-88776Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
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
8.8 HIGHEPSS 0.83%Not in KEVNVD: Modified
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.8 | HIGH | 4.0NetScaler (CNA) | 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 |
| 9.8 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Details
- CVE ID
- CVE-2026-88776
- Status
- Modified
- Assigner (CNA)
- NetScaler
- Published
- Sep 27, 2026
- Last modified
- 2026-09-29 17:17 UTC
- Weaknesses
Affected Products
As published by the CNA in the CVE record.
Citrix NetScalerADC4 version ranges
- before 14.1-73.37
- before 13.1-64.23
- before 14.1-73.37 FIPS
- before 13.1.37.279 FIPS and NDcPP
Citrix NetScalerGateway2 version ranges
- before 14.1-73.37
- before 13.1-64.23