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Critical 9.8Known exploited (CISA KEV)Published Jul 20, 2017

CVE-2017-6316Citrix NetScaler SD-WAN devices through v9.1.2.26.561201 allow remote attackers to execute arbitrary shell commands as root via a CGISESSID cookie.

Updated under an hour ago ()

Does this affect you?

It affects citrix netscaler_sd-wan. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Mar 25, 2022; federal agencies had to remediate by Apr 15, 2022. Treat that date as your deadline.

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.

CVSS
9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
Not given
Known exploited
Added to CISA KEV Mar 25, 2022; federal remediation due Apr 15, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days)
73.03% (percentile 99)
Assigned by
mitre
NVD analysis
Analyzed
Record last updated
Oct 21, 2025
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
citrix netscaler_sd-wan
citrix:netscaler_sd-wan
through 9.1.2.26.561201
NVD

References

  • vdb-entry, x-refsource-sectrack, broken-link, third-party-advisory
  • x-refsource-confirm, permissions-required
  • exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
  • vdb-entry, x-refsource-bid, broken-link, third-party-advisory
  • exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
  • us-government-resource

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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