Citrix NetScaler ADC/NetScaler Gateway up to 43.55/58.31 Management Interface out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Citrix NetScaler ADC and NetScaler Gateway up to 43.55/58.31. The impacted element is an unknown function of the component Management Interface. Such manipulation leads to out-of-bounds. This vulnerability is traded as CVE-2025-5777. The attack may be launched remotely. Furthermore, there is an exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Citrix NetScaler ADC and NetScaler Gateway up to 43.55/58.31. It has been rated as critical. Affected by this issue is an unknown function of the component Management Interface. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Insufficient input validation leading to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server

The advisory is shared for download at support.citrix.com. This vulnerability is handled as CVE-2025-5777 since 06/06/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 240341 (NetScaler ADC and NetScaler Gateway Multiple Vulnerabilities (CTX693420)), which helps to determine the existence of the flaw in a target environment. This issue was added on 07/10/2025 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 07/11/2025:

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Upgrading to version 43.56 or 58.32 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (52401), Tenable (240341) and EUVD (EUVD-2025-18497). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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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: 8.7
VulDB Meta Temp Score: 8.5

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 240341
Nessus Name: NetScaler ADC and NetScaler Gateway Multiple Vulnerabilities (CTX693420)

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: NetScaler ADC/NetScaler Gateway 43.56/58.32

Timelineinfo

06/06/2025 🔍
06/17/2025 +11 days 🔍
06/17/2025 +0 days 🔍
10/31/2025 +136 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: CTX693420
Status: Confirmed

CVE: CVE-2025-5777 (🔍)
GCVE (CVE): GCVE-0-2025-5777
GCVE (VulDB): GCVE-100-312704
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/17/2025 15:35
Updated: 10/31/2025 04:21
Changes: 06/17/2025 15:35 (69), 06/17/2025 17:29 (1), 06/24/2025 04:19 (1), 06/25/2025 23:09 (2), 07/10/2025 19:43 (13), 07/11/2025 09:41 (11), 08/14/2025 22:44 (1), 08/15/2025 06:30 (3), 10/31/2025 04:21 (1)
Complete: 🔍
Cache ID: 216::103

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