CVE-2026-8655
Awaiting Analysis Awaiting Analysis - Queue

Memory Overflow in NetScaler ADC and Gateway

Publication date: 2026-06-30

Last updated on: 2026-06-30

Assigner: 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5

Description
Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if NetScaler ADC is configured as an LB of type Oracle OR NetScaler ADC is configured as a DNS Proxy OR NetScaler ADC is configured as a DNS recursive resolver deployment

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-06-30
Last Modified
2026-06-30
Generated
2026-06-30
AI Q&A
2026-06-30
EPSS Evaluated
N/A
NVD
CVE-2026-8655
EUVD
EUVD-2026-40308

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
citrix netscaler_adc *
citrix netscaler_gateway *

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability involves multiple memory overflow issues in NetScaler ADC and NetScaler Gateway. These overflows can cause unpredictable or erroneous behavior and may lead to Denial of Service (DoS) conditions. The vulnerability is triggered when NetScaler ADC is configured as a load balancer of type Oracle, or as a DNS Proxy, or as a DNS recursive resolver.

Impact Analysis

The impact of this vulnerability includes unpredictable or erroneous behavior of the affected systems and potential Denial of Service (DoS). This means that services relying on NetScaler ADC or NetScaler Gateway configured in the specified ways could become unavailable or behave incorrectly, potentially disrupting business operations.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-8655. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart