Name: CVE-2026-88779: Improper Restriction of Operations within the Bounds of a Memory Buffer
Creator: Rapid7
Published: 2026-10-04T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-88779, CWE-119, Exploited in the Wild, CISA KEV Exploit, Zero Day, CVSS 7.5, EPSS 0.00276, CISA KEV

Emergent ThreatCVE-2026-88771:Rapid7 Analysis: NetScaler intrusions chaining CVE-2026-88771 and CVE-2026-88779Blog ↗

Vulnerability in NetScaler ADC and NetScaler Gateway.

This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.

CVSS Details

CVSS 4.0 Base Score: 8.7 (HIGH)
CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Netscaler Adc	—	Upgrade to the latest available version of Citrix ADC	Oct 6, 2026	Oct 3, 2026

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