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CVE-2020-0851

INDEX BUILT · 2026-09-20

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A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory, aka 'Microsoft Word…

CVE-2020-08514 of 4 sources documented this
27

rank 27 = 3 + 20 + 0 + 4 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.11829  ·  without this subject the record ranks 24

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

2 products in the CPE ranges  ·  without this subject the record ranks 23

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$590,000over the next 30 days, if this record is yours
Movement-$1.03Mon 2025-03-30, the last material move, 1 year, 3 months before this reading
Basisassumeda published average, not your estate

$590,000 = $4.99M incident cost x 1 exposure x 0.11829 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

0.11829EPSSNOT 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, 43 days at 0.12, as of 2026-07-28. 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 Office? 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.

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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 v3.1 · 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 28 Jul 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 probability0.11829 · top 4% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes47 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Office; Microsoft Office 365 ProPlusreceipt
Published rangesmicrosoft office 2016; microsoft office 2019receipt

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 Word software when it fails to properly handle objects in memory, aka 'Microsoft Word Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0850, CVE-2020-0852, CVE-2020-0855, CVE-2020-0892. receipt

NVD's analysis a second authority

severity
7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
affected versions
microsoft office 2016; microsoft office 2019

check it yourself portal.msrc.microsoft.com receipt

Dated events

2022-01-06EPSS moved 0.10 to 0.322025-03-17EPSS moved 0.02 to 0.292026-06-15EPSS moved 0.34 to 0.12

Movement the material steps

14 Apr 20210.09575
6 Jan 20220.32208 · crossed 0.10
1 Apr 20220.01789 · crossed 0.10
7 Mar 20230.09506 · scoring model v2023.03.01
16 Mar 20230.11754 · crossed 0.10
30 Mar 20230.08442 · crossed 0.10
15 Apr 20230.16005 · crossed 0.10
29 Apr 20230.05011 · crossed 0.10
14 May 20230.12352 · crossed 0.10
30 May 20230.04360 · crossed 0.10
17 Mar 20250.29163 · crossed 0.10 · scoring model v2025.03.14
29 Mar 20250.54202 · crossed 0.50
30 Mar 20250.33652 · crossed 0.50
15 Jun 20260.11548 · scoring model v2026.06.15
28 Jul 20260.11829
Show all 47 observations
14 Apr 20210.09575
6 Jan 20220.32208
4 Feb 20220.23639
1 Apr 20220.01789
4 Nov 20220.01941
19 Feb 20230.02116
7 Mar 20230.09506
16 Mar 20230.11754
30 Mar 20230.08442
15 Apr 20230.16005
29 Apr 20230.05011
14 May 20230.12352
30 May 20230.04360
14 Jun 20230.04187
29 Jun 20230.02451
16 Jul 20230.01606
31 Jul 20230.01486
16 Aug 20230.01214
2 Sep 20230.01749
20 Sep 20230.01009
8 Oct 20230.01200
25 Oct 20230.00885
13 Dec 20230.01205
31 Dec 20230.00897
15 Jan 20240.01974
1 Feb 20240.00958
17 Feb 20240.00982
5 Mar 20240.01246
19 Mar 20240.00882
7 May 20240.01684
22 May 20240.01026
21 Jun 20240.01356
23 Sep 20240.01384
7 Nov 20240.01356
27 Nov 20240.01912
11 Dec 20240.01356
17 Dec 20240.01843
17 Mar 20250.29163
19 Mar 20250.33652
29 Mar 20250.54202
30 Mar 20250.33652
19 May 20250.33474
11 Jun 20250.33652
18 Nov 20250.35463
21 Nov 20250.33652
15 Jun 20260.11548
28 Jul 20260.11829

47 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 0.11829Published2020-03-12Index as of2026-07-28

The record had been public for 6 years, 4 months when this index was last written.

Published 2020-03-12 receipt · Index as of 2026-07-28 derived

Siblings and hubs

Records related to this one

Its defect family

microsoft office

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.

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What usually comes next

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