CVE-2023-6549
HighActively exploited (CISA KEV)
Description
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
SeverityHigh
CVSS8.2
Exploit probability—
Product
Citrix NetScaler ADC and NetScaler Gateway
PublishedJan 17, 2024
First seenJan 17, 2024
Added to KEVJan 17, 2024
Weakness typeCWE-119Memory buffer bounds error
How to fix
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date: Feb 7, 2024Update
- citrix netscaler_application_delivery_controller12.1-55.302, 13.0-92.21, 13.1-37.176, 13.1-51.15, 14.1-12.35 or later
- citrix netscaler_gateway13.0-92.21, 13.1-51.15, 14.1-12.35 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| citrix netscaler_application_delivery_controller | 12.1 ≤ v < 12.1-55.302, 13.0 ≤ v < 13.0-92.21, 13.1 ≤ v < 13.1-37.176, 13.1 ≤ v < 13.1-51.15, 14.1 ≤ v < 14.1-12.35 | 12.1-55.302, 13.0-92.21, 13.1-37.176, 13.1-51.15, 14.1-12.35 |
| citrix netscaler_gateway | 13.0 ≤ v < 13.0-92.21, 13.1 ≤ v < 13.1-51.15, 14.1 ≤ v < 14.1-12.35 | 13.0-92.21, 13.1-51.15, 14.1-12.35 |
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