Gateway
CVE-2022-27516
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V15 - Secure Coding and Architecture Protection mechanism completeness
|
| Impact | CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system. |
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Alert meAnalysisAI
User login brute force protection functionality bypass. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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Technical ContextAI · show details
This vulnerability is classified under CWE-693. Affected products include: Citrix Gateway, Citrix Application Delivery Controller Firmware.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
User login brute force protection functionality bypass
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)NVD
Citrix NetScaler ADC and NetScaler Gateway deployments running builds prior to 14.1-73.37 or 13.1-64.23 (including the c
Unauthenticated command execution in Citrix NetScaler ADC (before 14.1-73.37, before 13.1-64.23, and the corresponding F
A remote, unauthenticated attacker can cause a denial-of-service condition on NetScaler ADC and NetScaler Gateway applia
An insufficient input validation vulnerability exists in Citrix NetScaler ADC and NetScaler Gateway when configured as a
The Gzip file parser in AVG Anti-Virus 10.0.0.1190, Bitdefender 7.2, Command Antivirus 5.2.11.5, Emsisoft Anti-Malware 5
The TAR file parser in AhnLab V3 Internet Security 2011.01.18.00, Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7,
The CAB file parser in Dr.Web 5.0.2.03300, Trend Micro HouseCall 9.120.0.1004, Kaspersky Anti-Virus 7.0.0.125, Sophos An
HTTP request smuggling (CWE-444) in Citrix NetScaler ADC and NetScaler Gateway allows unauthenticated, remote attackers
Predictable value generation in Citrix NetScaler ADC and Gateway (CWE-342) lets unauthenticated remote attackers predict
The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, Quick Heal (aka Cat QuickHeal) 11.00, Emsis
Remote unauthenticated attackers can trigger a memory overflow in Citrix NetScaler ADC and Gateway, leading to unpredict
A memory overflow in Citrix NetScaler ADC and NetScaler Gateway can be triggered by unauthenticated remote attackers (CV
GitHub PoC
Exploit-DB