CVE-2024-5491

Service interruption via undisclosed buffer-bounds operation

Published Jul 10, 2024 · Updated Nov 1, 2024

Denial of service in Cloud Software Group NetScaler ADC and NetScaler Gateway allows adjacent attackers to interrupt service over SNMP. Cloud Software Group has not disclosed the affected SNMP-processing locus or the specific buffer-bounds operation performed on network input. Reachability requires SNMP on an NSIP, CLIP, or SNIP with the management interface enabled; successful exploitation interrupts availability.

CVSS severity7.1
High
EPSS probability0.76%
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 Cloud Software Group NetScaler ADC and NetScaler Gateway allows adjacent attackers to interrupt service over SNMP. Cloud Software Group has not disclosed the affected SNMP-processing locus or the specific buffer-bounds operation performed on network input. Reachability requires SNMP on an NSIP, CLIP, or SNIP with the management interface enabled; successful exploitation interrupts availability.

The record

CVE
CVE-2024-5491
Published
Jul 10, 2024
Updated
Nov 1, 2024
Vendor
Cloud Software Group
Product
NetScaler Gateway
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. Nov 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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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 <53.17
  3. Affected versionversion=14.1 <25.53

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Cloud Software Group · NetScaler Gatewayversion=13.0 <92.31; version=13.1 <53.17; version=14.1 <25.53
Cloud Software Group · NetScaler ADCversion=12.1-FIPS <55.304; version=12.1-NDcPP <55.304; version=13.0 <92.31; version=13.1 <53.17; version=13.1-FIPS <37.183; version=14.1 <25.53

Published CVSS scores

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

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.

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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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