CVE-2026-120865

HighCVSS 8.7/10Last modified Nov 13, 2026

Description

Memory overflow in HTTP/3 (QUIC) can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway.

Metrics

CVSS 4.0 8.7/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:L/SI:L/SA:L/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

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
Citrix	NetScaler ADC	< 14.1-73.57; < 13.1-64.39; < 14.1-73.58 FIPS; < 13.1-37.293 FIPs and NDcPP
Citrix	NetScaler Gateway	< 14.1-73.57; < 13.1-64.39

References

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305

Timeline

Published: Nov 13, 2026
Last modified: Nov 13, 2026
NVD status: Received

Related CVEs from 2026

CVE-2026-1208667.7Memory overflow / improper handling in BGP dynamic routing can lead to unpredictable or erroneous behavior or Denial of Service in Citrix Ne CVE-2026-1208678.7Memory overflow in SSL/TLS/DTLS can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetS CVE-2026-1208689.3Memory overflow in Packet Processing can lead to unpredictable or erroneous behavior or Denial of Service in NetScaler ADC and NetScaler Gat CVE-2026-1208699.3An unauthenticated attacker can bypass authentication controls to access restricted resources on the Citrix NetScaler Console appliance CVE-2026-120879.1Socket versions before 2.041 for Perl have an out-of-bounds heap read. In Socket.xs, pack_ip_mreq_source() checks the length of its source CVE-2026-120894.9The LWS Optimize – All-in-One Speed Booster & Cache Tools plugin for WordPress is vulnerable to Arbitrary File Read in versions up to, and i CVE-2026-120906.5The Taskbuilder – Project Management & Task Management Tool With Kanban Board plugin for WordPress is vulnerable to generic SQL Injection vi CVE-2026-120915.3IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a denial of service due to a CVE-2026-120935.3The Simple Membership plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.7.5. This is due to CVE-2026-1209305.4Incorrect authorization in Blink in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted CVE-2026-1209319.6Out of bounds write in WebGL in Google Chrome on on Android prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code outsi CVE-2026-120945.3The Advanced Contact Form 7 - Compact DB plugin for WordPress is vulnerable to unauthorized deletion of data due to a missing capability che