CVE-2016-6266

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 8%CVSS: 8.8Exploit: NoneExposed: 0

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

ccca_ajaxhandler.php in Trend Micro Smart Protection Server 2.5 before build 2200, 2.6 before build 2106, and 3.0 before build 1330 allows remote authenticated users to execute arbitrary commands via shell metacharacters in the (1) host or (2) apikey parameter in a register action, (3) enable parameter in a save_stting action, or (4) host or (5) apikey parameter in a test_connection action.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
47(Track)
EG Risk 47/100SSVC: Track

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
Severity88% × 45%
Exploitation8% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
94.2%
KEV
Not listed

Published

January 30, 2017

Last Modified

May 13, 2026

References (4)

Data Freshness Timeline

(refreshed 14× in last 7d / 38× 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. 2026-07-24 14:13 UTCEPSS rescore
  2. 2026-07-23 14:15 UTCEPSS rescore
  3. 2026-07-23 01:23 UTCEG score recompute
  4. 2026-07-22 22:03 UTCEG score recompute
  5. 2026-07-22 14:04 UTCEPSS rescore
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  1. 2026-07-08 15:10 UTCEPSS rescore
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  21. 2026-06-19 19:23 UTCEPSS rescore
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  23. 2026-06-18 17:50 UTCEPSS rescore
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  35. 2026-06-08 14:14 UTCEPSS rescore
  36. 2026-06-07 15:22 UTCEPSS rescore
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  38. 2026-06-06 13:45 UTCEPSS rescore
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  40. 2026-06-05 22:44 UTCEPSS rescore
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  43. 2026-06-04 13:10 UTCEPSS rescore
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  45. 2026-06-02 20:10 UTCEPSS rescore
  46. 2026-06-01 13:49 UTCEPSS rescore
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  48. 2026-05-31 00:14 UTCEPSS rescore
  49. 2026-05-29 13:41 UTCEPSS rescore
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  54. 2026-05-26 07:17 UTCEPSS rescore
  55. 2026-05-24 16:44 UTCEPSS rescore
  56. 2026-05-22 21:15 UTCEPSS rescore
  57. 2026-05-22 16:40 UTCEG score recompute
  58. 2026-05-22 16:40 UTCGHSA enrichment
  59. 2026-05-20 22:37 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2016-6266?
CVE-2016-6266 is a high vulnerability published on January 30, 2017. cccaajaxhandler.php in Trend Micro Smart Protection Server 2.5 before build 2200, 2.6 before build 2106, and 3.0 before build 1330 allows remote authenticated users to execute arbitrary commands via shell metacharacters in the (1) host or (2) apikey parameter in a register action, (3) enable…
When was CVE-2016-6266 disclosed?
CVE-2016-6266 was first published in the National Vulnerability Database on January 30, 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-2016-6266 actively exploited?
CVE-2016-6266 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-6266?
CVE-2016-6266 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2016-6266?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-6266, 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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