Skip to content
Fencer Vulns
critical 9.8

CVE-2017-6316 kev in the critical feed json

Citrix NetScaler SD-WAN devices through v9.1.2.26.561201 allow remote attackers to execute arbitrary shell commands as root via a CGISESSID…

published 2017-07-20 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-15377

cvss
9.8
version 3.1, CNA
cisa kev
Exploited
added 2022-03-25
epss
73.0%
EPSS 73.0% chance of exploitation in 30 days, percentile 99.4%
public exploits
2
Exploit-DB

Summary

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.

Patch / fix

cisa required action Apply updates per vendor instructions.

Timeline

  1. First public exploit (EDB-42346)
  2. Published
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
4 y ago
Patch by
2022-04-15 (4 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Citrix, NetScaler SD-WAN Enterprise, CloudBridge Virtual WAN, and XenMobile Server
CISA name
Citrix Multiple Products Remote Code Execution Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
21 mo ago

Exploit prediction

73.03% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-42346 Citrix CloudBridge - 'CAKEPHP' Cookie Command Injection webapps, 2017-07-19
  • EDB-42345 Netscaler SD-WAN 9.1.2.26.561201 - Command Injection (Metasploit) webapps, 2017-07-19

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.