vciy

CVE-2018-8281

INDEX BUILT · 2026-09-20

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

CVE-2018-82814 of 4 sources documented this
28

rank 28 = 5 + 20 + 1 + 2 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.20779  ·  without this subject the record ranks 23

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 8

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-11-02  ·  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 26

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 28

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$1.04Mover the next 30 days, if this record is yours
Movement-$325,000on 2026-01-25, the last material move, 7 months before this reading
Basisassumeda published average, not your estate

$1.04M = $4.99M incident cost x 1 exposure x 0.20779 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

0.20779EPSSNOT IN KEVas of 2026-09-20
Severity7.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementsteadyreceipt
PLATEAU10Minimal movement since 2026-03-16, 183 days at 0.21, as of 2026-09-15. 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 Viewer? 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 v3.0 · 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 15 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 probability0.20779 · top 3% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes50 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Excel Viewer; Microsoft PowerPoint Viewer; Microsoft Office; Microsoft Office Word Viewerreceipt
Published rangesmicrosoft office 2016receipt

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 Office software when the software fails to properly handle objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability." This affects Microsoft Excel Viewer, Microsoft PowerPoint Viewer, Microsoft Office, Microsoft Office Word Viewer. 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 office 2016

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

Dated events

2023-03-27EPSS moved 0.33 to 0.582024-12-17EPSS moved 0.29 to 0.842026-06-15EPSS moved 0.30 to 0.20

Movement the material steps

14 Apr 20210.17549
26 Jun 20220.31104
7 Mar 20230.33266 · scoring model v2023.03.01
27 Mar 20230.57817 · crossed 0.50
10 Apr 20230.05330 · crossed 0.10 and 0.50
28 Feb 20240.10346 · crossed 0.10
25 Apr 20240.09173 · crossed 0.10
20 May 20240.15028 · crossed 0.10
20 Jun 20240.25893
17 Dec 20240.84339 · crossed 0.50
17 Mar 20250.54287 · scoring model v2025.03.14
19 Mar 20250.42928 · crossed 0.50
29 Mar 20250.56444 · crossed 0.50
30 Mar 20250.42928 · crossed 0.50
2 Nov 20250.50022 · crossed 0.50
3 Nov 20250.46764 · crossed 0.50
18 Nov 20250.28958
21 Nov 20250.46764
27 Dec 20250.52124 · crossed 0.50
25 Jan 20260.45611 · crossed 0.50
16 Mar 20260.29758
15 Jun 20260.19546 · scoring model v2026.06.15
15 Sep 20260.20779
Show all 50 observations
14 Apr 20210.17549
4 Feb 20220.21361
16 Apr 20220.23099
23 May 20220.27139
26 Jun 20220.31104
10 Aug 20220.32419
31 Oct 20220.34599
7 Mar 20230.33266
27 Mar 20230.57817
10 Apr 20230.05330
8 May 20230.06714
4 Jul 20230.07866
8 Jul 20230.06264
19 Oct 20230.06636
1 Dec 20230.07573
22 Dec 20230.09481
28 Feb 20240.10346
26 Mar 20240.10495
25 Apr 20240.09173
20 May 20240.15028
20 Jun 20240.25893
26 Jul 20240.29279
25 Nov 20240.29498
17 Dec 20240.84339
4 Jan 20250.80788
11 Feb 20250.79665
17 Mar 20250.54287
19 Mar 20250.42928
29 Mar 20250.56444
30 Mar 20250.42928
9 Apr 20250.37078
26 Apr 20250.36672
5 Jul 20250.44121
30 Oct 20250.43471
2 Nov 20250.50022
3 Nov 20250.46764
18 Nov 20250.28958
21 Nov 20250.46764
29 Nov 20250.49248
27 Dec 20250.52124
25 Jan 20260.45611
16 Mar 20260.29758
18 Apr 20260.24565
13 Jun 20260.30338
15 Jun 20260.19546
23 Aug 20260.17587
30 Aug 20260.19546
5 Sep 20260.17587
6 Sep 20260.19546
15 Sep 20260.20779

50 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 0.20779Published2018-07-11Index as of2026-09-15

The record had been public for 8 years, 2 months when this index was last written.

Published 2018-07-11 receipt · Index as of 2026-09-15 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

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What usually comes next

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