CVE-2020-8606

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 73%
  • Public exploit code is available (Metasploit, epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 73%CVSS: 9.8Exploit: Metasploit · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is available — apply it.

A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 may allow remote attackers to bypass authentication on affected installations of Trend Micro InterScan Web Security Virtual Appliance.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
78
EG Risk 78/100CISA SSVC

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%
Exploitation73% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
73%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

May 27, 2020

Last Modified

November 21, 2024

Advisory Details (4)

Auto-updated Oct 4, 2026
Patch available.
generic

ZDI-20-677 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-20-677/
generic

Article unavailable

https://success.trendmicro.com/solution/000253095
generic

Packet Storm

http://packetstormsecurity.com/files/158423/Trend-Micro-Web-Security-Remote-Code-Execution.html
generic

Packet Storm

http://packetstormsecurity.com/files/158171/Trend-Micro-Web-Security-Virtual-Appliance-Remote-Code-Execution.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 18× 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 101 total refreshes for this CVE.

  1. 2026-10-05 17:40 UTCEPSS rescore
  2. 2026-10-04 23:18 UTCEPSS rescore
  3. 2026-10-03 14:22 UTCEPSS rescore
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  6. 2026-09-30 15:24 UTCEG score recompute
  7. 2026-09-30 14:59 UTCEPSS rescore
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  1. 2026-08-21 23:45 UTCEPSS rescore
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  16. 2026-07-23 14:15 UTCEPSS rescore
  17. 2026-07-23 01:55 UTCEG score recompute
  18. 2026-07-22 22:41 UTCEG score recompute
  19. 2026-07-22 14:05 UTCEPSS rescore
  20. 2026-07-21 15:22 UTCEPSS rescore
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  22. 2026-07-20 17:04 UTCEPSS rescore
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  24. 2026-07-19 02:26 UTCEPSS rescore
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  26. 2026-07-18 10:02 UTCEPSS rescore
  27. 2026-07-16 17:00 UTCEPSS rescore
  28. 2026-07-15 16:55 UTCEPSS rescore
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  30. 2026-07-13 06:10 UTCEPSS rescore
  31. 2026-07-13 06:10 UTCEPSS rescore
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  34. 2026-07-09 19:07 UTCEPSS rescore
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  40. 2026-06-29 14:04 UTCEPSS rescore
  41. 2026-06-28 04:54 UTCEPSS rescore
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  43. 2026-06-25 13:48 UTCEPSS rescore
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  45. 2026-06-24 14:03 UTCEPSS rescore
  46. 2026-06-24 14:03 UTCEPSS rescore
  47. 2026-06-23 21:31 UTCEPSS rescore
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  49. 2026-06-21 14:54 UTCEPSS rescore
  50. 2026-06-21 14:54 UTCEPSS rescore
  51. 2026-06-17 17:50 UTCEPSS rescore
  52. 2026-06-16 17:50 UTCEPSS rescore
  53. 2026-06-15 17:46 UTCEPSS rescore
  54. 2026-06-14 23:15 UTCEPSS rescore
  55. 2026-06-13 22:58 UTCEPSS rescore
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  57. 2026-06-10 22:16 UTCEPSS rescore
  58. 2026-06-10 13:20 UTCEPSS rescore
  59. 2026-06-07 15:23 UTCEPSS rescore
  60. 2026-06-07 15:23 UTCEPSS rescore
  61. 2026-06-06 13:46 UTCEPSS rescore
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  63. 2026-06-06 13:46 UTCEPSS rescore
  64. 2026-06-05 22:45 UTCEPSS rescore
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  66. 2026-06-02 20:11 UTCEPSS rescore
  67. 2026-06-02 20:11 UTCEPSS rescore
  68. 2026-06-01 13:50 UTCEPSS rescore
  69. 2026-05-31 22:29 UTCEPSS rescore
  70. 2026-05-31 22:29 UTCEPSS rescore
  71. 2026-05-31 00:15 UTCEPSS rescore
  72. 2026-05-31 00:15 UTCEPSS rescore
  73. 2026-05-28 13:43 UTCEPSS rescore
  74. 2026-05-28 13:43 UTCEPSS rescore
  75. 2026-05-27 03:14 UTCEG score recompute

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/linux/http/trendmicro_websecurity_exec✓ verified
    First seen Jun 10, 2020

    Trend Micro Web Security (Virtual Appliance) Remote Code Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-8606?
CVE-2020-8606 is a critical vulnerability published on May 27, 2020. A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 may allow remote attackers to bypass authentication on affected installations of Trend Micro InterScan Web Security Virtual Appliance.
When was CVE-2020-8606 disclosed?
CVE-2020-8606 was first published on May 27, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-8606 actively exploited?
CVE-2020-8606 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 73% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-8606?
CVE-2020-8606 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-8606?
A fix for CVE-2020-8606 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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