CVE-2026-3055

Citrix — Citrix NetScaler Out-of-Bounds Read Vulnerability

CISA KEV · in the CISA KEV catalog since 2026-03-30

What EVULNABLE says

EVULNABLE Risk · priority 86/100 Immediate Intelligence coverage 75/90 — no pre-patch disclosure data
Overdue by 5 monthsCISA KEVActively Exploited

Why it matters: Listed in the CISA KEV catalog, and an EPSS probability of 0.872.

Patch Immediately

The priority band answers “how soon”, not “how bad” — see Methodology for what it weighs and where it abstains.

The evidence behind it

Published measurements for CVE-2026-3055
MeasureValueSource
CVSS base score 9.3 NVD
FIRST EPSS 0.872 (99.74th pctl) FIRST
Actively exploited Confirmed CISA KEV
Ransomware campaign use Unknown or none CISA KEV
CISA remediation deadline 2026-04-02 — Overdue by 5 months CISA KEV
Intelligence coverage 75/90 — no pre-patch disclosure data

What CISA says to do

This page is an opinion about urgency. Where it and a source of record disagree, the source of record is the record.