CVE-2026-8655

Published Jun 30, 2026

Last updated 8 days ago

Overview

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
Source
50a63c94-1ea7-4568-8c11-eb79e7c5a2b5
NVD status
Analyzed
Products
netscaler_application_delivery_controller, netscaler_gateway

Risk scores

CVSS 4.0

Type
Secondary
Base score
8.8
Impact score
-
Exploitability score
-
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/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
Severity
HIGH

CVSS 3.1

Type
Primary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-119

Social media

Hype score
Not currently trending
  1. ⚠️ Vulnerabilidades en productos Citrix ❗ CVE-2026-8655 ❗ CVE-2026-8452 ❗ CVE-2026-8451 ➡️ Más info: https://t.co/2dLfwsJi4C https://t.co/UwrkcXqHEb

    @CERTpy

    9 Jul 2026

    194 Impressions

    0 Retweets

    0 Likes

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    0 Replies

    0 Quotes

  2. NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-8451, CVE-2026-8452, CVE-2026-8655, CVE-2026-10816, CVE-2026-10817, and CVE-2026-13474 https://t.co/UGmoOer9KD #patchmanagement

    @eyalestrin

    4 Jul 2026

    42 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  3. Citrix has recently released new updates to fix NetScaler ADC and NetScaler Gateway, where attackers would be able to conduct file reads and/or trigger a Denial-of-Service condition. These updates resolves the following CVEs: -> CVE-2026-8451 -> CVE-2026-8452 -> CVE-20

    @Leila97726926

    4 Jul 2026

    63 Impressions

    0 Retweets

    0 Likes

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    0 Replies

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  4. 🚨 6 high-severity Citrix NetScaler flaws - CVE-2026-8451 - CVE-2026-8452 - CVE-2026-8655 - CVE-2026-10816 - CVE-2026-10817 - CVE-2026-13474 All six stem from improper memory handling/input validation, enabling DoS and memory overflow. Fixes: - 14.1 → upgrade to 14.1-72.61

    @techepages

    1 Jul 2026

    53 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

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  5. 🚨🚨🚨 NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-8451, CVE-2026-8452, CVE-2026-8655, CVE-2026-10816, CVE-2026-10817, and CVE-2026-13474 https://t.co/5V1endcgNp

    @autumn_good_35

    1 Jul 2026

    620 Impressions

    0 Retweets

    3 Likes

    1 Bookmark

    1 Reply

    0 Quotes

  6. 🚨🚨🚨@cloudsoftware has just issued a security bulletin for @NetScaler 🚨🚨🚨 Severity: *** HIGH *** CVE: CVE-2026-8451 / CVE-2026-8452 / CVE-2026-8655 / CVE-2026-10816 / CVE-2026-10817 / CVE-2026-13474 For more information: https://t.co/GsLEmIbEMS

    @jantytgat

    30 Jun 2026

    139 Impressions

    1 Retweet

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

Configurations