CVE-2026-13474

Denial of service via malformed HTTP/2 requests

Published Jun 30, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
Denial of service via malformed HTTP/2 requests in NetScaler ADC and NetScaler Gateway if HTTP/2 is enabled in HTTP Profile and associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Netscaler
Netscaler adc
Netscaler gateway
Vendors & Products Netscaler
Netscaler adc
Netscaler gateway
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Denial of service via malformed HTTP/2 requests in NetScaler ADC and NetScaler Gateway if HTTP/2 is enabled in HTTP Profile and associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
Title Denial of service via malformed HTTP/2 requests
Weaknesses CWE-401
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
NetScaler
Published
Updated
Jun 30, 2026, 1:27 PM
Reserved
Jun 26, 2026, 10:24 PM
Status
Analyzed
Published
Jun 30, 2026, 1:17 PM
Modified
Jul 2, 2026, 4:55 PM