CVE-2024-6236

Service interruption via undisclosed memory bounds error

Published Jul 10, 2024 · Updated Aug 27, 2025

Denial of service in affected NetScaler Console, Agent, and SDX builds allows remote attackers to interrupt service via management IPs. NetScaler identifies a memory-buffer bounds error but intentionally withholds the affected locus and incorrect memory operation. Exploitation requires network access to a customer-managed product IP; the documented consequence is service interruption without data disclosure or modification.

CVSS severity7.1
High
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in affected NetScaler Console, Agent, and SDX builds allows remote attackers to interrupt service via management IPs. NetScaler identifies a memory-buffer bounds error but intentionally withholds the affected locus and incorrect memory operation. Exploitation requires network access to a customer-managed product IP; the documented consequence is service interruption without data disclosure or modification.

The record

CVE
CVE-2024-6236
Published
Jul 10, 2024
Updated
Aug 27, 2025
Vendor
Cloud Software Group
Product
NetScaler SDX
Classifications
CWE-119, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=13.0 <92.31
  2. Affected versionversion=13.1 <52.25
  3. Affected versionversion=14.1 <25.53

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Cloud Software Group · NetScaler SDXversion=13.0 <92.31; version=13.1 <52.25; version=14.1 <25.53
Cloud Software Group · NetScaler Agentversion=13.0 <92.31; version=13.1 <52.25; version=14.1 <25.53
Cloud Software Group · NetScaler Consoleversion=13.0 <92.31; version=13.1 <52.25; version=14.1 <25.53

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1Cloud Software GroupCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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