Citrix NetScaler ADC/NetScaler Gateway denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Citrix NetScaler ADC and NetScaler Gateway. This vulnerability affects unknown code. This manipulation causes denial of service. This vulnerability is handled as CVE-2024-5491. The attack can only be done within the local network. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Citrix NetScaler ADC and NetScaler Gateway (affected version unknown). It has been declared as critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Denial of Service in NetScaler ADC and NetScaler Gateway in NetScaler

It is possible to read the advisory at support.citrix.com. This vulnerability is known as CVE-2024-5491 since 05/29/2024. The exploitation appears to be easy. The attack can only be done within the local network. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/29/2024 🔍
07/09/2024 +41 days 🔍
07/09/2024 +0 days 🔍
07/25/2025 +381 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: CTX677944
Status: Confirmed

CVE: CVE-2024-5491 (🔍)
GCVE (CVE): GCVE-0-2024-5491
GCVE (VulDB): GCVE-100-270691

Entryinfo

Created: 07/09/2024 15:54
Updated: 07/25/2025 17:34
Changes: 07/09/2024 15:54 (52), 07/25/2025 17:34 (26)
Complete: 🔍
Cache ID: 216::103

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