CVE-2026-88777

Sunday, September 27, 2026

8.8

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

Summary

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

Affected Software

Vendor	Product	Version Range	Status
Citrix NetScaler	ADC	`0 < 14.1-73.37`	affected
Citrix NetScaler	ADC	`0 < 13.1-64.23`	affected
Citrix NetScaler	ADC	`0 < 14.1-73.37 FIPS`	affected
Citrix NetScaler	ADC	`0 < 13.1.37.279 FIPS and NDcPP`	affected
Citrix NetScaler	Gateway	`0 < 14.1-73.37`	affected
Citrix NetScaler	Gateway	`0 < 13.1-64.23`	affected

Weaknesses

References

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

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