CVE-2025-6543: Memory overflow vulnerability leading to unintended control flow and Denial of Service
NetScaler · ADC
Vendor fix available · Affected: NetScaler ADC · Exploitation: in CISA KEV since 30 Jun 2025
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
ExploitationIn CISA KEV
- In CISA KEVCISA KEV catalogue30 Jun 2025
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public: not seen
- Not established: not seen
Higher than 95% of scored CVEs
DescriptionCVE.org
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
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- NetScaler · ADCfrom 14.1 before 47.46; from 13.1 before 59.19; from 13.1 FIPS and NDcPP before 37.236
- NetScaler · Gatewayfrom 14.1 before 47.46; from 13.1 before 59.19; from 13.1 FIPS and NDcPP before 37.236
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalogue.
- CISA KEV
- Listed since 30 Jun 2025 · catalogue entry
- Public check
- No public nuclei template
- Vendor
- NetScaler
- Published
- June 2025
What changed
- CISA added it to the KEV catalogue CISA
CoverageNo articles yet
No CyberSIXT article names CVE-2025-6543 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.