Read the docs
TI-2026-60195 Aliases CVE-2026-88772GHSA-h5xm-pf48-4c32

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service

Priority CRITICAL 100Exploited in the wildCWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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 Remote Code Execution or Denial of Service

Why it matters now

Exploitation Active In CISA KEV since 2026-09-27CISA due date 2026-09-30
EPSS 0.76566 99th percentileScored 2026-11-07
Fix Fixed ADC (Citrix NetScaler): 14.1-73.37, 13.1-64.23, 14.1-73.37 FIPS +1Gateway (Citrix NetScaler): 14.1-73.37, 13.1-64.23

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CitrixADCbefore 14.1-73.37; before 13.1-64.23; before 14.1-73.37 FIPS; before 13.1.37.279 FIPS and NDcPP14.1-73.37, 13.1-64.23, 14.1-73.37 FIPS, 13.1.37.279 FIPS and NDcPPPatch availableCNA
CitrixGatewaybefore 14.1-73.37; before 13.1-64.2314.1-73.37, 13.1-64.23Patch availableCNA
  • ADC VendorCitrix Affected before 14.1-73.37; before 13.1-64.23; before 14.1-73.37 FIPS; before 13.1.37.279 FIPS and NDcPP Fixed in 14.1-73.37, 13.1-64.23, 14.1-73.37 FIPS, 13.1.37.279 FIPS and NDcPP Patch available CNA
  • Gateway VendorCitrix Affected before 14.1-73.37; before 13.1-64.23 Fixed in 14.1-73.37, 13.1-64.23 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*13.1 to before 13.1-64.23VulnerableCitrix
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*13.1 to before 13.1.37.279VulnerableCitrix
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*13.1 to before 13.1.37.279VulnerableCitrix
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*14.1 to before 14.1-73.37VulnerableCitrix
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*14.1-66.68 – 14.1-73.37VulnerableCitrix
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*13.1 to before 13.1-64.23; 14.1 to before 14.1-73.37VulnerableCitrix
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* Versions 13.1 to before 13.1-64.23 Vulnerable ·Citrix
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* Versions 13.1 to before 13.1.37.279 Vulnerable ·Citrix
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* Versions 13.1 to before 13.1.37.279 Vulnerable ·Citrix
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* Versions 14.1 to before 14.1-73.37 Vulnerable ·Citrix
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* Versions 14.1-66.68 – 14.1-73.37 Vulnerable ·Citrix
  • cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* Versions 13.1 to before 13.1-64.23; 14.1 to before 14.1-73.37 Vulnerable ·Citrix

Remediation

  • Fix · CNA ADC (Citrix NetScaler) Fixed in 14.1-73.37, 13.1-64.23, 14.1-73.37 FIPS, 13.1.37.279 FIPS and NDcPP
  • Fix · CNA Gateway (Citrix NetScaler) Fixed in 14.1-73.37, 13.1-64.23

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Citrix NetScaler ADC, Gateway 13.1-64.23, 13.1.37.279 FIPS and NDcPP and 2 more versions

    7 records Highest priority Priority CRITICAL 2 CRITICAL, 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-60194 Improper input validation in Citrix ADCPriority CRITICAL 100
    • TI-2026-60201 TCP Initial Sequence Number (ISN) predictionPriority MEDIUM 47
    • TI-2026-60199 Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of ServicePriority MEDIUM 46
    Show all 7 records →

Timeline

  1. 2026-09-27 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2026-88772
  3. 2026-10-03 Alias added: GHSA-h5xm-pf48-4c32
  4. 2026-10-23 EPSS moved to the 90th–95th percentile
  5. 2026-10-25 EPSS moved to the 99th percentile and above

References

Advisory 1

  • TI-2026-60194 Improper input validation in Citrix ADC KEVCVSS 4.0CRITICAL 9.5
  • TI-2023-04571 Unauthenticated sensitive information disclosure in Citrix NetScaler ADC KEVCVSS 3.1CRITICAL 9.4
  • TI-2023-03284 Unauthenticated remote code execution in Citrix NetScaler ADC KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-15872 NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490 KEVCVSS 4.0CRITICAL 9.3
  • TI-2026-02639 Insufficient input validation leading to memory overread KEVCVSS 4.0CRITICAL 9.3
  • TI-2025-07100 Memory corruption in Citrix ADC KEVCVSS 4.0CRITICAL 9.2
See all 39 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences