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TI-2017-12821 Aliases CVE-2017-17549GHSA-8gj6-9x8x-c99v

Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.5 before…

Priority LOW 30CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.5 before build 67.13, 11.0 before build 71.22, 11.1 before build 56.19, and 12.0 before build 53.22 allow remote attackers to obtain sensitive information from the backend client TLS handshake by leveraging use of TLS with Client Certificates and a Diffie-Hellman Ephemeral (DHE) key exchange.

Why it matters now

EPSS 0.01571 75th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:o:citrix:application_delivery_controller_firmware:10.5:*:*:*:*:*:*:*10.5VulnerableCitrix
cpe:2.3:o:citrix:application_delivery_controller_firmware:11.0:*:*:*:*:*:*:*11.0VulnerableCitrix
cpe:2.3:o:citrix:application_delivery_controller_firmware:11.1:*:*:*:*:*:*:*11.1VulnerableCitrix
cpe:2.3:o:citrix:application_delivery_controller_firmware:12.0:*:*:*:*:*:*:*12.0VulnerableCitrix
cpe:2.3:o:citrix:netscaler_gateway_firmware:10.5:*:*:*:*:*:*:*10.5VulnerableCitrix
cpe:2.3:o:citrix:netscaler_gateway_firmware:11.0:*:*:*:*:*:*:*11.0VulnerableCitrix
cpe:2.3:o:citrix:netscaler_gateway_firmware:11.1:*:*:*:*:*:*:*11.1VulnerableCitrix
cpe:2.3:o:citrix:netscaler_gateway_firmware:12.0:*:*:*:*:*:*:*12.0VulnerableCitrix
  • cpe:2.3:o:citrix:application_delivery_controller_firmware:10.5:*:*:*:*:*:*:* Versions 10.5 Vulnerable ·Citrix
  • cpe:2.3:o:citrix:application_delivery_controller_firmware:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Citrix
  • cpe:2.3:o:citrix:application_delivery_controller_firmware:11.1:*:*:*:*:*:*:* Versions 11.1 Vulnerable ·Citrix
  • cpe:2.3:o:citrix:application_delivery_controller_firmware:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Citrix
  • cpe:2.3:o:citrix:netscaler_gateway_firmware:10.5:*:*:*:*:*:*:* Versions 10.5 Vulnerable ·Citrix
  • cpe:2.3:o:citrix:netscaler_gateway_firmware:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Citrix
  • cpe:2.3:o:citrix:netscaler_gateway_firmware:11.1:*:*:*:*:*:*:* Versions 11.1 Vulnerable ·Citrix
  • cpe:2.3:o:citrix:netscaler_gateway_firmware:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Citrix

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-17549
  2. 2026-10-03 Alias added: GHSA-8gj6-9x8x-c99v

References

Advisory 1

  • TI-2022-10528 Unauthenticated remote arbitrary code execution in Citrix Gateway, Citrix ADC KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-14254 An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway 10.5… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-06613 Improper input validation in Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP KEVCVSS 3.1MEDIUM 6.5
  • TI-2020-06611 Improper access control in Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP KEVCVSS 3.1MEDIUM 6.5
  • TI-2020-06614 Improper access control in Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP KEVCVSS 3.1MEDIUM 4.3
  • TI-2018-05232 The AppFirewall functionality in Citrix NetScaler Application Delivery Controller and… CVSS 3.0CRITICAL 9.8
See all 29 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences