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Vulnerabilities CVE-2025-6543

CVE-2025-6543

Medium
Open
KEV
TLP:CLEAR

Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability

NVD CVE.org
DDoS

AI Analysis

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Description

Citrix — NetScaler ADC and Gateway — Citrix NetScaler ADC and Gateway contain a buffer overflow vulnerability leading to unintended control flow and Denial of Service. NetScaler must be configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server.

Details

EPSS Score ⓘ
10.09%

95.2th percentile

Confidence
100%
CISA KEV
Date Added
Jun 30, 2025
Patch Due
Jul 21, 2025
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.
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