CVE-2026-13474 — HIGH (7.5)

Q: How severe is CVE-2026-13474?

CVE-2026-13474 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-13474?

Check the references section above for vendor advisories and patch information. Affected products include: Citrix Netscaler Application Delivery Controller, Citrix Netscaler Gateway.

Vulnerability 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

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Citrix	Netscaler Application Delivery Controller	< 13.1-37.272
Citrix	Netscaler Gateway	>= 13.1, < 13.1-63.18

Related Weaknesses (CWE)

CWE-401

References

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604Vendor Advisory

FAQ

What is CVE-2026-13474?

CVE-2026-13474 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...

How severe is CVE-2026-13474?

CVE-2026-13474 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13474?

Check the references section above for vendor advisories and patch information. Affected products include: Citrix Netscaler Application Delivery Controller, Citrix Netscaler Gateway.