AEGLIX vulnerability intelligence
CVE-2025-6543
CRITICAL · CVSS 9.2 · Analyzed
Published: 2025-06-25 · Updated: 2026-06-17 · Source: NVD
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Vulnerability overview
Memory overflow vulnerability leading to unintended control flow and Denial of Service in NetScaler ADC and NetScaler Gateway when configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
Severity and scoring
- CVSS score
- 9.2 · CRITICAL
- CVSS version
- 4.0
- CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Weaknesses
- CWE-119
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Citrix · NetScaler ADC and Gateway
- Added to catalog
- 2025-06-30
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA remediation due date
- 2025-07-21
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
From (inclusive): 13.1
Before (exclusive): 13.1-37.236
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
From (inclusive): 13.1
Before (exclusive): 13.1-37.236
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
From (inclusive): 13.1
Before (exclusive): 13.1-59.19
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
From (inclusive): 14.1
Before (exclusive): 14.1-47.46
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
From (inclusive): 13.1
Before (exclusive): 13.1-59.19
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
From (inclusive): 14.1
Before (exclusive): 14.1-47.46
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.