CVE-2020-8605

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 88% probability of exploitation within the next 30 days (99th percentile of EPSS-scored CVEs). NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Weaponized
9.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 88%
  • Public exploit code is available (Metasploit, epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 88%CVSS: 8.8Exploit: 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 execute arbitrary code on affected installations. Authentication is required to exploit this vulnerability.

CVSS v3
8.8
EG Score
9.0CRITICALhigh confidence
EG Risk
80
EG Risk 80/100CISA 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
Severity90% × 45%
Exploitation88% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
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
88%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

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 partial (CVSS below 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 Aug 24, 2026
Patch available.
generic

ZDI-20-676 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-20-676/
generic

Article unavailable

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

Packet Storm Security

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

Packet Storm Security

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 5× in last 7d / 16× 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. 2026-10-05 17:40 UTCEPSS rescore
  2. 2026-10-04 23:18 UTCEPSS rescore
  3. 2026-10-03 14:22 UTCEPSS rescore
  4. 2026-10-03 14:22 UTCEPSS rescore
  5. 2026-09-30 15:24 UTCEG score recompute
  6. 2026-09-26 15:54 UTCEPSS rescore
  7. 2026-09-26 15:54 UTCEPSS rescore
  8. 2026-09-26 00:21 UTCEPSS rescore
  9. 2026-09-24 14:00 UTCEPSS rescore
  10. 2026-09-22 14:44 UTCEPSS rescore
  11. 2026-09-21 20:28 UTCEPSS rescore
  12. 2026-09-18 19:23 UTCEPSS rescore
  13. 2026-09-17 19:22 UTCEPSS rescore
  14. 2026-09-13 16:43 UTCEPSS rescore
  15. 2026-09-12 14:57 UTCEPSS rescore
  16. 2026-09-06 13:44 UTCEPSS rescore
  17. 2026-09-05 15:25 UTCEPSS rescore
  18. 2026-09-04 05:03 UTCEPSS rescore
  19. 2026-08-30 19:14 UTCEPSS rescore
  20. 2026-08-30 01:19 UTCEPSS rescore
  21. 2026-08-28 21:37 UTCEPSS rescore
  22. 2026-08-27 14:21 UTCEPSS rescore
  23. 2026-08-26 14:42 UTCEPSS rescore
  24. 2026-08-19 17:00 UTCEPSS rescore
  25. 2026-08-17 13:43 UTCEPSS rescore
Show 44 more
  1. 2026-08-17 13:43 UTCEPSS rescore
  2. 2026-08-16 02:11 UTCEPSS rescore
  3. 2026-08-12 13:47 UTCEPSS rescore
  4. 2026-08-09 13:43 UTCEPSS rescore
  5. 2026-08-06 13:43 UTCEPSS rescore
  6. 2026-08-05 19:14 UTCEPSS rescore
  7. 2026-07-25 14:15 UTCEPSS rescore
  8. 2026-07-24 14:15 UTCEPSS rescore
  9. 2026-07-23 01:55 UTCEG score recompute
  10. 2026-07-22 22:41 UTCEG score recompute
  11. 2026-07-22 14:05 UTCEPSS rescore
  12. 2026-07-20 17:04 UTCEPSS rescore
  13. 2026-07-20 17:04 UTCEPSS rescore
  14. 2026-07-16 17:00 UTCEPSS rescore
  15. 2026-07-13 06:10 UTCEPSS rescore
  16. 2026-07-13 06:10 UTCEPSS rescore
  17. 2026-07-06 16:25 UTCEPSS rescore
  18. 2026-07-01 15:03 UTCEPSS rescore
  19. 2026-06-25 13:48 UTCEPSS rescore
  20. 2026-06-25 13:48 UTCEPSS rescore
  21. 2026-06-23 21:31 UTCEPSS rescore
  22. 2026-06-23 21:31 UTCEPSS rescore
  23. 2026-06-16 17:50 UTCEPSS rescore
  24. 2026-06-15 17:46 UTCEPSS rescore
  25. 2026-06-14 23:15 UTCEPSS rescore
  26. 2026-06-13 22:58 UTCEPSS rescore
  27. 2026-06-13 22:58 UTCEPSS rescore
  28. 2026-06-11 13:58 UTCEPSS rescore
  29. 2026-06-11 13:58 UTCEPSS rescore
  30. 2026-06-10 22:16 UTCEPSS rescore
  31. 2026-06-10 13:20 UTCEPSS rescore
  32. 2026-06-05 22:45 UTCEPSS rescore
  33. 2026-06-05 22:45 UTCEPSS rescore
  34. 2026-06-02 20:11 UTCEPSS rescore
  35. 2026-06-02 20:11 UTCEPSS rescore
  36. 2026-06-01 13:50 UTCEPSS rescore
  37. 2026-05-31 22:29 UTCEPSS rescore
  38. 2026-05-31 22:29 UTCEPSS rescore
  39. 2026-05-31 00:15 UTCEPSS rescore
  40. 2026-05-31 00:15 UTCEPSS rescore
  41. 2026-05-28 13:43 UTCEPSS rescore
  42. 2026-05-28 13:43 UTCEPSS rescore
  43. 2026-05-27 03:14 UTCEG score recompute
  44. 2026-05-27 03:14 UTCGHSA enrichment

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). 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 ↗
  • Exploit-DBEDB-48667
    First seen Jul 14, 2020

    Trend Micro Web Security Virtual Appliance 6.5 SP2 Patch 4 Build 1901 - Remote Code Execution (Metasploit)

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-8605?
CVE-2020-8605 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 execute arbitrary code on affected installations. Authentication is required to exploit this vulnerability.
When was CVE-2020-8605 disclosed?
CVE-2020-8605 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-2020-8605 actively exploited?
CVE-2020-8605 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 88% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-8605?
CVE-2020-8605 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
How do I remediate CVE-2020-8605?
A fix for CVE-2020-8605 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2020-8605

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