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CVE-2026-3055
CRITICALCISA KEV9.8
Description
Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
CVE Details
CVSS v3.1 Score9.8
SeverityCRITICAL
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
Published3/23/2026
Last Modified3/31/2026
Sourcenvd
Honeypot Sightings0
CISA KEV
VendorCitrix
ProductNetScaler
Vulnerability NameCitrix NetScaler Out-of-Bounds Read Vulnerability
KEV Date Added2026-03-30
Remediation Due Date2026-04-02
Ransomware UseUnknown
Affected Products
citrix:netscaler_application_delivery_controllercitrix:netscaler_gateway
Weaknesses (CWE)
CWE-125
References
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300(50a63c94-1ea7-4568-8c11-eb79e7c5a2b5)
https://labs.watchtowr.com/please-we-beg-just-one-weekend-free-of-appliances-citrix-netscaler-cve-2026-3055-memory-overread-part-2/(134c704f-9b21-4f2e-91b3-4a467353bcc0)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3055(134c704f-9b21-4f2e-91b3-4a467353bcc0)
IOC Correlations
No correlations recorded
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