CVE-2025-6543
Memory overflow vulnerability leading to unintended control flow and Denial of Service
- Published
- Jun 25, 2025
- Updated
- Feb 26, 2026
- Assigning CNA
- Citrix
- Evidence observed
- Jun 30, 2025
Primary CVSS
nvd · CVSS 4.0
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:XModerate · next 30 days
- Percentile
- 95.5%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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
Sources
3Multi-host, multi-port scanner and auditor for CVE-2025-6543-affected NetScaler devices. Supports SNMP and SSH enumeration with optional CSV reporting and exploit stubs.
- Citrix-cve-2025-6543Scanner
Script para determinar si Citrix es vulnerable al CVE-2025-6543
Proof-of-concept exploit for CVE-2025-6543 (Citrix Bleed 2), demonstrating remote code execution against vulnerable Citrix ADC/NetScaler appliances.
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.