CVE-2025-6543
Citrix
KEV
- Vendors: Citrix
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788 ; https://www.netscaler.com/blog/news/netscaler-critical-security-updates-for-cve-2025-6543-and-cve-2025-5777/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-6543
Related CVE by CWE
No related CWE found.
Top CVE for Vendor
- CVE-2025-7775 (CVSS 9.8)
- CVE-2000-0244 (no score)
Recently Exploited Similar Vulnerabilities
No recent KEV-listed items for this vendor/product.
How to fix CVE-2025-6543
CVE-2025-6543 is a unknown severity vulnerability affecting Citrix the affected product.
Description: https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788 ; https://www.netscaler.com/blog/news/netscaler-critical-security-updates-for-cve-2025-6543-and-cve-2025-5777/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-6543 Related CVE by CWENo related CWE found.Top CVE for VendorCVE-2025-7775 (CVSS 9.8)CVE-2000-0244 (no score)Recently Exploited Similar VulnerabilitiesNo recent KEV-listed items for this vendor/product.
Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public
How to Fix:
- Check if you're running the affected product
- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
Vendor Advisory: https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788
Description: https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788 ; https://www.netscaler.com/blog/news/netscaler-critical-security-updates-for-cve-2025-6543-and-cve-2025-5777/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-6543 Related CVE by CWENo related CWE found.Top CVE for VendorCVE-2025-7775 (CVSS 9.8)CVE-2000-0244 (no score)Recently Exploited Similar VulnerabilitiesNo recent KEV-listed items for this vendor/product.
Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public
How to Fix:
1 Identify affected systems
- Check if you're running the affected product
2 Immediate actions
- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
3 Verification
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
4 Long-term prevention
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
Vendor Advisory: https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788
Exploit Difficulty Assessment
HARD
Time to Exploit: > 4 hours
Skills Required: Advanced security expertise
Public Exploits: Rare or not public
KEV Status: This vulnerability is actively exploited in the wild!
Vulnerability Timeline
Timeline information not available for this CVE.
Detection Rules & IOCs
No specific detection rules generated for this vulnerability type.