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CVE-2020-8604

INDEX BUILT · 2026-09-20

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A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 may allow remote attackers to disclose sensitive informatoin on affected…

CVE-2020-86044 of 4 sources documented this
43

rank 43 = 22 + 19 + 0 + 2 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.89772  ·  without this subject the record ranks 21

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.5, from NVD  ·  without this subject the record ranks 24

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 43

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 41

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 43

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.74Mover the next 30 days, if this record is yours
Movement-$519,000on 2022-04-01, the last material move, 4 years, 4 months before this reading
Basisassumeda published average, not your estate

$2.74M = $4.99M incident cost x 0.6121449559255632 exposure x 0.89772 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.89772EPSSNOT IN KEVas of 2026-09-20
Severity7.5 HIGHreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2023-03-07, 1251 days at 0.90, as of 2026-08-09. arc-rules@v1

Foresight · where to check next

CVE-2024-57727ConfiguratorZyxel ATP seriesCVE-2024-41713CVE-2023-41266SonicWall Email8604

This record is one instance of CWE-22, improper limitation of a pathname to a restricted directory ('path traversal'). The index holds 10301 prior instances of this class, 94 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')receipt
Published consequencesCWE-22: Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands; Integrity: Modify Files or Directories; Confidentiality: Read Files or Directories…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 9 Aug 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD7.5 HIGHreceipt
Exploit probability0.89772 · top 0.22% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bytrendmicroreceipt
Recorded changes21 · last 17 Sep 2026derived

Affected & Fixed Versions as published

Affected productTrend Micro InterScan Web Security Virtual Appliancereceipt
Published rangestrendmicro interscan web security virtual appliance 6.5receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 may allow remote attackers to disclose sensitive informatoin on affected installations. receipt

NVD's analysis a second authority

severity
7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
weakness
CWE-22
affected versions
trendmicro interscan web security virtual appliance 6.5

check it yourself zerodayinitiative.com success.trendmicro.com packetstormsecurity.com packetstormsecurity.com receipt

Dated events

2022-01-06EPSS moved 0.09 to 0.322023-03-07EPSS moved 0.01 to 0.972026-06-15EPSS moved 0.83 to 0.90

Movement the material steps

14 Apr 20210.09411
6 Jan 20220.31792 · crossed 0.10
4 Feb 20220.18199
1 Apr 20220.01213 · crossed 0.10
7 Mar 20230.97303 · crossed 0.10 and 0.50 and 0.90 · scoring model v2023.03.01
17 Mar 20250.86644 · crossed 0.90 · scoring model v2025.03.14
15 Jun 20260.89661 · scoring model v2026.06.15
9 Aug 20260.89772
Show all 21 observations
14 Apr 20210.09411
6 Jan 20220.31792
4 Feb 20220.18199
1 Apr 20220.01213
7 Mar 20230.97303
5 Dec 20230.97276
12 Feb 20240.97282
17 Apr 20240.97229
22 Jul 20240.97220
20 Sep 20240.97130
17 Dec 20240.97231
21 Dec 20240.97260
22 Jan 20250.97217
17 Mar 20250.86644
29 Mar 20250.84771
30 Mar 20250.86644
11 Aug 20250.8286
18 Nov 20250.86696
21 Nov 20250.8286
15 Jun 20260.89661
9 Aug 20260.89772

21 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.89772Published2020-05-27Index as of2026-08-09

The record had been public for 6 years, 2 months when this index was last written.

Published 2020-05-27 receipt · Index as of 2026-08-09 derived

The pattern, elsewhere

This record is one instance of CWE-22, improper limitation of a pathname to a restricted directory ('path traversal'). The index holds 10301 prior instances of this class, 94 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2024-57727matches 8 of 8KEV listed · 2025receipt
CVE-2025-61884 · Oracle Configuratormatches 8 of 9KEV listed · 2025receipt
CVE-2024-11667 · Zyxel ATP series firmwarematches 8 of 9KEV listed · 2024receipt
CVE-2024-41713matches 7 of 8KEV listed · 2024receipt
CVE-2023-41266matches 7 of 8KEV listed · 2023receipt
CVE-2021-20023 · SonicWall Email Securitymatches 7 of 9KEV listed · 2021receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

10301 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

Its defect family

trend micro interscan web security virtual appliance

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

Nothing we hold separates this record from the others in its defect family. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

These are index-wide views, not findings about CVE-2020-8604.

What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

Everything on this page is free. Public data. Withholding it protects nothing.