// For flags

CVE-2023-6549

Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

Yes
*KEV

Decision

-
*SSVC
Descriptions

Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and Out-Of-Bounds Memory Read

La restricción inadecuada de las operaciones dentro de los límites de un búfer de memoria en NetScaler ADC y NetScaler Gateway permite una denegación de servicio no autenticada

Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for a denial-of-service when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-12-06 CVE Reserved
  • 2024-01-17 CVE Published
  • 2024-01-17 Exploited in Wild
  • 2024-02-07 KEV Due Date
  • 2024-08-02 CVE Updated
  • 2024-11-12 EPSS Updated
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Citrix
Search vendor "Citrix"
Netscaler Application Delivery Controller
Search vendor "Citrix" for product "Netscaler Application Delivery Controller"
>= 12.1 < 12.1-55.302
Search vendor "Citrix" for product "Netscaler Application Delivery Controller" and version " >= 12.1 < 12.1-55.302"
fips
Affected
Citrix
Search vendor "Citrix"
Netscaler Application Delivery Controller
Search vendor "Citrix" for product "Netscaler Application Delivery Controller"
>= 12.1 < 12.1-55.302
Search vendor "Citrix" for product "Netscaler Application Delivery Controller" and version " >= 12.1 < 12.1-55.302"
ndcpp
Affected
Citrix
Search vendor "Citrix"
Netscaler Application Delivery Controller
Search vendor "Citrix" for product "Netscaler Application Delivery Controller"
>= 13.0 < 13.0-92.21
Search vendor "Citrix" for product "Netscaler Application Delivery Controller" and version " >= 13.0 < 13.0-92.21"
-
Affected
Citrix
Search vendor "Citrix"
Netscaler Application Delivery Controller
Search vendor "Citrix" for product "Netscaler Application Delivery Controller"
>= 13.1 < 13.1-37.176
Search vendor "Citrix" for product "Netscaler Application Delivery Controller" and version " >= 13.1 < 13.1-37.176"
fips
Affected
Citrix
Search vendor "Citrix"
Netscaler Application Delivery Controller
Search vendor "Citrix" for product "Netscaler Application Delivery Controller"
>= 13.1 < 13.1-51.15
Search vendor "Citrix" for product "Netscaler Application Delivery Controller" and version " >= 13.1 < 13.1-51.15"
-
Affected
Citrix
Search vendor "Citrix"
Netscaler Application Delivery Controller
Search vendor "Citrix" for product "Netscaler Application Delivery Controller"
>= 14.1 < 14.1-12.35
Search vendor "Citrix" for product "Netscaler Application Delivery Controller" and version " >= 14.1 < 14.1-12.35"
-
Affected
Citrix
Search vendor "Citrix"
Netscaler Gateway
Search vendor "Citrix" for product "Netscaler Gateway"
>= 13.0 < 13.0-92.21
Search vendor "Citrix" for product "Netscaler Gateway" and version " >= 13.0 < 13.0-92.21"
-
Affected
Citrix
Search vendor "Citrix"
Netscaler Gateway
Search vendor "Citrix" for product "Netscaler Gateway"
>= 13.1 < 13.1-51.15
Search vendor "Citrix" for product "Netscaler Gateway" and version " >= 13.1 < 13.1-51.15"
-
Affected
Citrix
Search vendor "Citrix"
Netscaler Gateway
Search vendor "Citrix" for product "Netscaler Gateway"
>= 14.1 < 14.1-12.35
Search vendor "Citrix" for product "Netscaler Gateway" and version " >= 14.1 < 14.1-12.35"
-
Affected