CVE-2017-6316

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 73%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS
99.4%
KEV
⚠ Exploited

Published

July 20, 2017

Last Modified

April 21, 2026

Advisory Details (4)

Auto-updated Apr 30, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Citrix CloudBridge - 'CAKEPHP' Cookie Command Injection - CGI webapps Exploit

https://www.exploit-db.com/exploits/42346/
generic🟡 PoC Available

Netscaler SD-WAN 9.1.2.26.561201 - Command Injection (Metasploit) - CGI webapps Exploit

https://www.exploit-db.com/exploits/42345/
generic

Loading...

https://support.citrix.com/article/CTX225990
generic
http://www.securityfocus.com/bid/99943

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 44× in last 7d / 213× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 434 total refreshes for this CVE.

  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 01:30 UTCEG score recompute
  3. 2026-07-23 00:07 UTCEG score recompute
  4. 2026-07-23 00:07 UTCGHSA enrichment
  5. 2026-07-22 22:09 UTCEG score recompute
  6. 2026-07-22 20:16 UTCGHSA enrichment
  7. 2026-07-22 19:40 UTCCISA KEV update
  8. 2026-07-22 16:26 UTCEG score recompute
  9. 2026-07-22 16:26 UTCGHSA enrichment
  10. 2026-07-22 14:04 UTCEPSS rescore
  11. 2026-07-22 14:04 UTCEPSS rescore
  12. 2026-07-22 12:40 UTCGHSA enrichment
  13. 2026-07-22 08:54 UTCGHSA enrichment
  14. 2026-07-22 05:10 UTCGHSA enrichment
  15. 2026-07-22 00:47 UTCGHSA enrichment
  16. 2026-07-21 19:32 UTCGHSA enrichment
  17. 2026-07-21 15:46 UTCEG score recompute
  18. 2026-07-21 15:46 UTCGHSA enrichment
  19. 2026-07-21 15:21 UTCEPSS rescore
  20. 2026-07-21 15:21 UTCEPSS rescore
  21. 2026-07-21 14:37 UTCCISA KEV update
  22. 2026-07-21 12:01 UTCGHSA enrichment
  23. 2026-07-21 08:14 UTCGHSA enrichment
  24. 2026-07-21 04:29 UTCGHSA enrichment
  25. 2026-07-21 00:44 UTCGHSA enrichment
Show 75 more
  1. 2026-07-20 20:59 UTCGHSA enrichment
  2. 2026-07-20 17:15 UTCEG score recompute
  3. 2026-07-20 17:15 UTCGHSA enrichment
  4. 2026-07-20 17:04 UTCEPSS rescore
  5. 2026-07-20 13:24 UTCGHSA enrichment
  6. 2026-07-20 09:38 UTCGHSA enrichment
  7. 2026-07-20 05:53 UTCGHSA enrichment
  8. 2026-07-20 02:08 UTCGHSA enrichment
  9. 2026-07-19 22:24 UTCGHSA enrichment
  10. 2026-07-19 18:37 UTCGHSA enrichment
  11. 2026-07-19 14:52 UTCGHSA enrichment
  12. 2026-07-19 11:08 UTCGHSA enrichment
  13. 2026-07-19 07:23 UTCGHSA enrichment
  14. 2026-07-19 03:37 UTCGHSA enrichment
  15. 2026-07-18 23:52 UTCGHSA enrichment
  16. 2026-07-18 20:07 UTCGHSA enrichment
  17. 2026-07-18 16:22 UTCGHSA enrichment
  18. 2026-07-18 12:37 UTCGHSA enrichment
  19. 2026-07-18 08:52 UTCGHSA enrichment
  20. 2026-07-18 05:07 UTCGHSA enrichment
  21. 2026-07-18 01:21 UTCGHSA enrichment
  22. 2026-07-17 21:36 UTCGHSA enrichment
  23. 2026-07-17 17:51 UTCGHSA enrichment
  24. 2026-07-17 14:06 UTCGHSA enrichment
  25. 2026-07-17 10:21 UTCEG score recompute
  26. 2026-07-17 10:20 UTCGHSA enrichment
  27. 2026-07-17 06:34 UTCGHSA enrichment
  28. 2026-07-17 02:50 UTCGHSA enrichment
  29. 2026-07-16 23:05 UTCGHSA enrichment
  30. 2026-07-16 19:20 UTCGHSA enrichment
  31. 2026-07-16 17:04 UTCCISA KEV update
  32. 2026-07-16 15:32 UTCGHSA enrichment
  33. 2026-07-16 11:47 UTCGHSA enrichment
  34. 2026-07-16 08:02 UTCGHSA enrichment
  35. 2026-07-16 04:17 UTCGHSA enrichment
  36. 2026-07-16 00:32 UTCGHSA enrichment
  37. 2026-07-15 20:46 UTCGHSA enrichment
  38. 2026-07-15 16:59 UTCGHSA enrichment
  39. 2026-07-15 16:54 UTCEPSS rescore
  40. 2026-07-15 16:49 UTCCISA KEV update
  41. 2026-07-15 15:04 UTCCISA KEV update
  42. 2026-07-15 13:13 UTCGHSA enrichment
  43. 2026-07-15 09:26 UTCGHSA enrichment
  44. 2026-07-15 05:40 UTCGHSA enrichment
  45. 2026-07-15 01:56 UTCEPSS rescore
  46. 2026-07-15 01:56 UTCEPSS rescore
  47. 2026-07-15 01:55 UTCGHSA enrichment
  48. 2026-07-14 22:10 UTCGHSA enrichment
  49. 2026-07-14 18:23 UTCGHSA enrichment
  50. 2026-07-14 18:05 UTCCISA KEV update
  51. 2026-07-14 14:39 UTCGHSA enrichment
  52. 2026-07-14 10:52 UTCGHSA enrichment
  53. 2026-07-14 07:06 UTCGHSA enrichment
  54. 2026-07-14 03:21 UTCGHSA enrichment
  55. 2026-07-13 23:37 UTCGHSA enrichment
  56. 2026-07-13 19:52 UTCGHSA enrichment
  57. 2026-07-13 17:07 UTCCISA KEV update
  58. 2026-07-13 16:07 UTCGHSA enrichment
  59. 2026-07-13 12:21 UTCGHSA enrichment
  60. 2026-07-13 08:35 UTCGHSA enrichment
  61. 2026-07-13 04:49 UTCGHSA enrichment
  62. 2026-07-13 01:04 UTCGHSA enrichment
  63. 2026-07-12 21:20 UTCGHSA enrichment
  64. 2026-07-12 17:35 UTCGHSA enrichment
  65. 2026-07-12 13:49 UTCGHSA enrichment
  66. 2026-07-12 10:03 UTCGHSA enrichment
  67. 2026-07-12 06:18 UTCGHSA enrichment
  68. 2026-07-12 05:43 UTCEPSS rescore
  69. 2026-07-12 02:32 UTCGHSA enrichment
  70. 2026-07-11 22:47 UTCGHSA enrichment
  71. 2026-07-11 19:02 UTCGHSA enrichment
  72. 2026-07-11 15:17 UTCGHSA enrichment
  73. 2026-07-11 11:32 UTCGHSA enrichment
  74. 2026-07-11 08:24 UTCEPSS rescore
  75. 2026-07-11 07:47 UTCGHSA enrichment

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-42346
    First seen Jul 19, 2017

    Citrix CloudBridge - 'CAKEPHP' Cookie Command Injection

    Open source ↗
  • Exploit-DBEDB-42345
    First seen Jul 19, 2017

    Netscaler SD-WAN 9.1.2.26.561201 - Command Injection (Metasploit)

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2017-6316?
CVE-2017-6316 is a critical vulnerability published on July 20, 2017. 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.
When was CVE-2017-6316 disclosed?
CVE-2017-6316 was first published in the National Vulnerability Database on July 20, 2017, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-6316 actively exploited?
Yes. CISA added CVE-2017-6316 to the Known Exploited Vulnerabilities catalog on March 25, 2022, affecting Citrix NetScaler SD-WAN Enterprise, CloudBridge Virtual WAN, and XenMobile Server. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2017-6316?
CVE-2017-6316 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2017-6316?
CVE-2017-6316 affects Citrix NetScaler SD-WAN Enterprise, CloudBridge Virtual WAN, and XenMobile Server. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2017-6316?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-6316, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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