vciy

CVE-2018-0920

INDEX BUILT · 2026-09-20

No source can show you its own past. This one can.

Print this page to keep the view as it stands on this date. Everything hidden behind a disclosure opens, and every receipt prints with its value.

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka "Microsoft…

CVE-2018-09204 of 4 sources documented this
27

rank 27 = 5 + 20 + 0 + 2 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.21001  ·  without this subject the record ranks 22

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.8, from NVD  ·  without this subject the record ranks 7

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 27

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 25

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 27

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$1.05Mover the next 30 days, if this record is yours
Movement+$2.60Mon 2024-12-17, the last material move, 1 year, 8 months before this reading
Basisassumeda published average, not your estate

$1.05M = $4.99M incident cost x 1 exposure x 0.21001 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

0.21001EPSSNOT IN KEVas of 2026-09-20
Severity7.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementsteadyreceipt
PLATEAU10Minimal movement since 2026-06-15, 83 days at 0.21, as of 2026-09-06. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Running Microsoft Excel? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

Watch this record

Matches your own product list against every record this index holds, and tells you when one of them moves.

What counts as a move

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Record your call

Keep your verdict, your reason and the evidence together. The record takes its date when you save it.

AcceptDeferPatch by…Not affectedMitigated

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachneeds local access · no privileges required · user interaction required · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.0 · NVD's vectorreceipt
Weakness classNo CWE mapping in held sources.

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 6 Sep 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, NVD7.8 HIGHreceipt
Exploit probability0.21001 · top 3% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes38 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Excelreceipt
Published rangesmicrosoft excel 2010receipt

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 remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka "Microsoft Excel Remote Code Execution Vulnerability." This affects Microsoft Excel. This CVE ID is unique from CVE-2018-1011, CVE-2018-1027, CVE-2018-1029. receipt

NVD's analysis a second authority

severity
7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
affected versions
microsoft excel 2010

check it yourself securitytracker.com securityfocus.com portal.msrc.microsoft.com receipt

Dated events

2022-02-04EPSS moved 0.18 to 0.232025-03-17EPSS moved 0.78 to 0.152026-06-15EPSS moved 0.34 to 0.20

Movement the material steps

14 Apr 20210.17549
28 Mar 20220.31104
7 Mar 20230.0533 · crossed 0.10 · scoring model v2023.03.01
29 Nov 20230.10346 · crossed 0.10
25 Jan 20240.09173 · crossed 0.10
20 Feb 20240.15028 · crossed 0.10
22 Mar 20240.25893
17 Dec 20240.79665 · crossed 0.50
17 Mar 20250.14675 · crossed 0.50 · scoring model v2025.03.14
29 Mar 20250.25457
30 Mar 20250.14675
4 Aug 20250.28958
15 Jun 20260.19953 · scoring model v2026.06.15
6 Sep 20260.21001
Show all 38 observations
14 Apr 20210.17549
4 Feb 20220.23099
22 Feb 20220.27139
28 Mar 20220.31104
12 May 20220.32419
2 Aug 20220.34599
6 Jan 20230.3932
7 Mar 20230.0533
8 Mar 20230.05330
5 Apr 20230.06264
21 Jul 20230.06636
2 Sep 20230.07573
23 Sep 20230.09481
29 Nov 20230.10346
26 Dec 20230.10495
25 Jan 20240.09173
20 Feb 20240.15028
22 Mar 20240.25893
27 Apr 20240.29279
27 Aug 20240.29498
13 Nov 20240.27657
17 Dec 20240.79665
15 Mar 20250.77755
17 Mar 20250.14675
29 Mar 20250.25457
30 Mar 20250.14675
6 Apr 20250.23487
4 Aug 20250.28958
31 Aug 20250.31196
28 Sep 20250.3391
15 Jun 20260.19953
17 Jun 20260.21208
13 Jul 20260.20452
18 Jul 20260.21001
23 Aug 20260.20125
30 Aug 20260.21001
5 Sep 20260.20125
6 Sep 20260.21001

38 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 0.21001Published2018-04-12Index as of2026-09-06

The record had been public for 8 years, 4 months when this index was last written.

Published 2018-04-12 receipt · Index as of 2026-09-06 derived

Siblings and hubs

Records related to this one

Its defect family

microsoft excel

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

Family membership: computed, pro@dim2000

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-2018-0920.

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.