CVE-2017-6316

CRITICAL KEV

Citrix NetScaler SD-WAN <v9.1.2.26.561201 - Command Injection

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2017-6316 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added March 25, 2022. EIP tracks 2 public exploits from researchers including xort.

AI-analyzed exploit summary This Metasploit module exploits a remote command injection vulnerability in Citrix SD-WAN appliances (version <= 9.1.2.26.561201) via the CGISESSID cookie parameter. It allows unauthenticated remote code execution by injecting commands into the cookie, which are then executed by the system.

Description

Citrix NetScaler SD-WAN devices through v9.1.2.26.561201 allow remote attackers to execute arbitrary shell commands as root via a CGISESSID cookie. On CloudBridge (the former name of NetScaler SD-WAN) devices, the cookie name was CAKEPHP rather than CGISESSID.

Exploits (2)

exploitdb WORKING POC
by xort · rubywebappscgi
https://www.exploit-db.com/exploits/42345

This Metasploit module exploits a remote command injection vulnerability in Citrix SD-WAN appliances (version <= 9.1.2.26.561201) via the CGISESSID cookie parameter. It allows unauthenticated remote code execution by injecting commands into the cookie, which are then executed by the system.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Citrix SD-WAN <= 9.1.2.26.561201
No auth needed
Prerequisites: Network access to the target device · Target device must be running a vulnerable version of Citrix SD-WAN
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC
by xort · textwebappscgi
https://www.exploit-db.com/exploits/42346

This exploit leverages a command injection vulnerability in the `CAKEPHP` cookie parameter of the login.cgi endpoint. The `sleep 10` command demonstrates arbitrary command execution, which can be replaced with a reverse shell or other payloads.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Unknown (likely a web application using CAKEPHP framework)
No auth needed
Prerequisites: Network access to the target web application
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Broken Link, Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1039019
Permissions Required x_refsource_confirm
https://support.citrix.com/article/CTX225990
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/42345/
Broken Link, Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/99943
Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/42346/

Scores

CVSS v3 9.8
EPSS 0.7260
EPSS Percentile 99.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation active
Automatable yes
Technical Impact total

Details

CISA KEV 2022-03-25
VulnCheck KEV 2019-12-13
InTheWild.io 2019-12-13
ENISA EUVD EUVD-2017-15377
Status published
Products (1)
citrix/netscaler_sd-wan < 9.1.2.26.561201
Published Jul 20, 2017
KEV Added Mar 25, 2022
Tracked Since Feb 18, 2026