CVE-2016-9091

HIGHNVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
7.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 10%CVSS: 7.2Exploit: NoneExposed: 0

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

Blue Coat Advanced Secure Gateway (ASG) 6.6 before 6.6.5.4 and Content Analysis System (CAS) 1.3 before 1.3.7.4 are susceptible to an OS command injection vulnerability. An authenticated malicious administrator can execute arbitrary OS commands with elevated system privileges.

CVSS v3
7.2
EG Score
7.2(medium)
EPSS
95.1%
KEV
Not listed

Published

April 5, 2017

Last Modified

May 13, 2026

References (8)

Data Freshness Timeline

(refreshed 8× in last 7d / 34× 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.

  1. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-06 16:24 UTCEPSS rescore
  4. 2026-07-05 02:27 UTCEPSS rescore
  5. 2026-07-04 06:28 UTCEPSS rescore
  6. 2026-07-01 15:02 UTCEPSS rescore
  7. 2026-06-30 23:19 UTCEPSS rescore
  8. 2026-06-30 23:19 UTCEPSS rescore
  9. 2026-06-29 14:03 UTCEPSS rescore
  10. 2026-06-28 04:53 UTCEPSS rescore
  11. 2026-06-27 03:05 UTCEPSS rescore
  12. 2026-06-25 13:47 UTCEPSS rescore
  13. 2026-06-24 14:02 UTCEPSS rescore
  14. 2026-06-23 21:30 UTCEPSS rescore
  15. 2026-06-22 14:23 UTCEPSS rescore
  16. 2026-06-21 14:54 UTCEPSS rescore
  17. 2026-06-21 14:54 UTCEPSS rescore
  18. 2026-06-21 01:57 UTCEPSS rescore
  19. 2026-06-21 01:57 UTCEPSS rescore
  20. 2026-06-18 17:50 UTCEPSS rescore
  21. 2026-06-18 17:50 UTCEPSS rescore
  22. 2026-06-17 17:50 UTCEPSS rescore
  23. 2026-06-17 17:50 UTCEPSS rescore
  24. 2026-06-16 17:50 UTCEPSS rescore
  25. 2026-06-15 17:45 UTCEPSS rescore
Show 38 more
  1. 2026-06-14 23:14 UTCEPSS rescore
  2. 2026-06-14 23:14 UTCEPSS rescore
  3. 2026-06-13 22:57 UTCEPSS rescore
  4. 2026-06-13 22:57 UTCEPSS rescore
  5. 2026-06-12 23:09 UTCEPSS rescore
  6. 2026-06-11 13:57 UTCEPSS rescore
  7. 2026-06-08 14:14 UTCEPSS rescore
  8. 2026-06-07 15:22 UTCEPSS rescore
  9. 2026-06-07 15:22 UTCEPSS rescore
  10. 2026-06-06 13:45 UTCEPSS rescore
  11. 2026-06-06 13:45 UTCEPSS rescore
  12. 2026-06-05 22:44 UTCEPSS rescore
  13. 2026-06-05 06:08 UTCEPSS rescore
  14. 2026-06-05 06:08 UTCEPSS rescore
  15. 2026-06-04 13:10 UTCEPSS rescore
  16. 2026-06-04 13:10 UTCEPSS rescore
  17. 2026-06-02 20:10 UTCEPSS rescore
  18. 2026-05-31 22:28 UTCEPSS rescore
  19. 2026-05-31 22:28 UTCEPSS rescore
  20. 2026-05-31 00:14 UTCEPSS rescore
  21. 2026-05-29 13:41 UTCEPSS rescore
  22. 2026-05-28 13:42 UTCEPSS rescore
  23. 2026-05-28 13:42 UTCEPSS rescore
  24. 2026-05-27 13:38 UTCEPSS rescore
  25. 2026-05-27 13:38 UTCEPSS rescore
  26. 2026-05-26 07:17 UTCEPSS rescore
  27. 2026-05-22 21:15 UTCEPSS rescore
  28. 2026-05-22 14:38 UTCEG score recompute
  29. 2026-05-22 14:38 UTCGHSA enrichment
  30. 2026-05-21 18:36 UTCOSV refresh
  31. 2026-05-20 22:37 UTCEPSS rescore
  32. 2026-05-20 22:37 UTCEPSS rescore
  33. 2026-05-20 22:37 UTCEPSS rescore
  34. 2026-05-20 11:21 UTCEPSS rescore
  35. 2026-05-20 11:21 UTCEPSS rescore
  36. 2026-05-18 21:30 UTCEPSS rescore
  37. 2026-05-18 21:30 UTCEPSS rescore
  38. 2026-05-18 21:30 UTCEPSS rescore

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-41786✓ verified
    First seen Apr 3, 2017

    Bluecoat ASG 6.6/CAS 1.3 - Local Privilege Escalation (Metasploit)

    Open source ↗
  • Exploit-DBEDB-41785✓ verified
    First seen Apr 3, 2017

    Bluecoat ASG 6.6/CAS 1.3 - OS Command Injection (Metasploit)

    Open source ↗

Frequently asked(5)

What is CVE-2016-9091?
CVE-2016-9091 is a high vulnerability published on April 5, 2017. Blue Coat Advanced Secure Gateway (ASG) 6.6 before 6.6.5.4 and Content Analysis System (CAS) 1.3 before 1.3.7.4 are susceptible to an OS command injection vulnerability. An authenticated malicious administrator can execute arbitrary OS commands with elevated system privileges.
When was CVE-2016-9091 disclosed?
CVE-2016-9091 was first published in the National Vulnerability Database on April 5, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-9091 actively exploited?
CVE-2016-9091 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 95.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-9091?
CVE-2016-9091 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2016-9091?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-9091, 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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