CVE-2026-8452 KEV
9.8
CRITICAL · CVSS 3.1 · EPSS 1% (pctl 62)
Patch first
On CISA KEV — known exploited in the wild, due 2026-08-29.
Description
Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 1.01% — more likely to be exploited than 62% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | yes — remediate by 2026-08-29 |
| Public exploit | none known |
| Published | 2026-06-30 |
| Last modified | 2026-08-27 |
CISA KEV
| Name | Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability |
|---|---|
| Added | 2026-08-26 |
| Due | 2026-08-29 |
| Vendor / product | Citrix / NetScaler ADC and NetScaler Gateway |
| Ransomware use | none reported |
Affected (2)
| Vendor | Product |
|---|---|
| citrix | netscaler application delivery controller |
| citrix | netscaler gateway |
References
→ the Explorer · watch your stack · NVD