High 8.8Published Sep 27, 2026

CVE-2026-88775Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service

Updated under an hour ago (Oct 27, 2026, 1:10 PM ET)

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It affects Citrix NetScaler ADC and 3 other products. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.38%, higher than 30% of scored CVEs.

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Every CVE for Citrix NetScaler ADC

Exploited in the last 30 days

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

CVSS: 8.8 HIGH (v4.0, 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
Weakness (CWE): CWE-120
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.38% (percentile 30)
Assigned by: NetScaler
NVD analysis: Modified
Record last updated: Sep 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Citrix NetScaler ADC citrix_netscaler:adc (from the name)	before 14.1-73.37; before 13.1-64.23; before 14.1-73.37 FIPS; before 13.1.37.279 FIPS and NDcPP	CNA record
Citrix NetScaler Gateway citrix_netscaler:gateway (from the name)	before 14.1-73.37; before 13.1-64.23	CNA record
citrix netscaler_application_delivery_controller citrix:netscaler_application_delivery_controller	from 13.1 before 13.1-64.23; from 13.1 before 13.1.37.279; from 13.1 before 13.1.37.279; from 14.1 before 14.1-73.37; from 14.1-66.68 through 14.1-73.37	NVD
citrix netscaler_gateway citrix:netscaler_gateway	from 13.1 before 13.1-64.23; from 14.1 before 14.1-73.37	NVD

References

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	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.