CVE-2026-3055 KEV
9.8
CRITICAL · CVSS 3.1 · EPSS 4% (pctl 90)
Patch first
On CISA KEV — known exploited in the wild, due 2026-04-02.
Description
Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
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 | 4.04% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-125 |
| On CISA KEV | yes — remediate by 2026-04-02 |
| Public exploit | none known |
| Published | 2026-03-23 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Citrix NetScaler Out-of-Bounds Read Vulnerability |
|---|---|
| Added | 2026-03-30 |
| Due | 2026-04-02 |
| Vendor / product | Citrix / NetScaler |
| Ransomware use | none reported |
Affected (2)
| Vendor | Product |
|---|---|
| citrix | netscaler application delivery controller |
| citrix | netscaler gateway |
References
→ the Explorer · watch your stack · NVD