CVEs / CVE-2026-8451
CVE-2026-8451: NetScaler ADC vulnerability
- high 7.5 CVSS 3.1 (NVD)
- EPSS 14.2% chance of exploitation in the next 30 days, higher than 96% of CVEs (8 Nov 2026)
- Last changed at its sources
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Description
Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDP
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| NetScaler ADC | from 14.1, before 72.61 | 72.61 |
| NetScaler ADC | from 13.1, before 63.18 | 63.18 |
| NetScaler ADC | from 14.1 FIPs, before 72.61 | 72.61 |
| NetScaler ADC | from 13.1 FIPS and NDcPP, before 37.272 | 37.272 |
| NetScaler Gateway | from 14.1, before 72.61 | 72.61 |
| NetScaler Gateway | from 13.1, before 63.18 | 63.18 |
Exploitation
Not in the CISA Known Exploited Vulnerabilities catalog as of 6 Nov 2026.
Severity
| CVSS 3.1 | 7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NScored by NVD |
|---|---|
| Weakness | CWE-125 |
References
- CVE-2026-8451 on NVD
- https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604 Vendor Advisory
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.