vciy

CVE-2018-0802

INDEX BUILT · 2026-09-20

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Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allow a remote code execution…

CVE-2018-08024 of 4 sources documented this
73

rank 73 = 40 + 20 + 0 + 7 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.93289 · CISA KEV listed  ·  without this subject the record ranks 33

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 53

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 73

How much of the world it touches

NVD CPE configurations

8 products in the CPE ranges  ·  without this subject the record ranks 66

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 67

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.66Mover the next 30 days, if this record is yours
Movement+$293,000on 2026-08-28, the last material move, 7 days before this reading
Basisassumeda published average, not your estate

$4.66M = $4.99M incident cost x 1 exposure x 0.93289 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

0.93289EPSSKEV · LISTED
Severity7.8 HIGHreceipt
Harmtotal loss · ransomware-linkedreceipt
Exploitationransomware use knownreceipt
Defenseno fix version held
Movementthreshold crossedreceipt
PLATEAU10Minimal movement since 2023-03-07, 1277 days at 0.93, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

Microsoft WindowsMicrosoft WindowsGoogle Chrome0802

This record is one instance of CWE-787, out-of-bounds write. The index holds 14892 prior instances of this class, 163 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

Running Microsoft Corporation Equation Editor? Check your version

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Harm, if it fires from the vector and the weakness

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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 classCWE-787 Out-of-bounds Writereceipt
Published consequencesCWE-787: Integrity: Modify Memory, Execute Unauthorized Code or Commands; Availability: DoS: Crash, Exit, or Restart; Other: Unexpected State[email protected]
Ransomware campaign useKnown (CISA)receipt

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 4 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.
CISA remediation statusoverdue since 2022-05-03receipt
CISA required actionApply updates per vendor instructions.receipt
Published to CISA KEV1393 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Ransomware campaign use known, 2021-11-03.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 6 public repositories2018-01-11receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2021-11-03receipt
  • RUNG 4Ransomware campaign use known2021-11-03receipt

Authority who says so

CVSS, NVD7.8 HIGHreceipt
Exploit probability0.93289 · top 0.17% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes78 · last 18 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Corporation Equation Editorreceipt
Published rangesmicrosoft office 2007; microsoft office 2010; microsoft office 2013; microsoft office 2016receipt
Show all 8 published ranges
microsoft office 2007
microsoft office 2010
microsoft office 2013
microsoft office 2016
microsoft word 2007
microsoft word 2010
microsoft word 2013
microsoft word 2016

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

Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allow a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE is unique from CVE-2018-0797 and CVE-2018-0812. 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
weakness
CWE-787
affected versions
microsoft office 2007; microsoft office 2010; microsoft office 2013; and 5 more, listed in full below
also scored by
7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

check it yourself portal.msrc.microsoft.com github.com securitytracker.com 0patch.blogspot.com securityfocus.com github.com +1 morereceipt

Dated events

2021-11-03Added to CISA KEV2022-02-04EPSS moved 0.61 to 0.752022-05-03CISA remediation due2023-03-07EPSS moved 0.77 to 0.972026-08-28EPSS moved 0.87 to 0.93

Movement the material steps

14 Apr 20210.61034
4 Feb 20220.75486
7 Mar 20230.97495 · crossed 0.90 · scoring model v2023.03.01
17 Mar 20250.93929 · scoring model v2025.03.14
15 Jun 20260.93361 · scoring model v2026.06.15
24 Jul 20260.87417 · crossed 0.90
28 Aug 20260.93289 · crossed 0.90
Show all 64 observations
14 Apr 20210.61034
4 Feb 20220.75486
6 Oct 20220.76684
7 Mar 20230.97495
16 Mar 20230.97487
3 Apr 20230.97464
20 Apr 20230.97441
8 May 20230.97146
2 Jun 20230.97245
23 Jun 20230.97220
8 Jul 20230.97454
12 Jul 20230.97456
29 Aug 20230.97389
4 Sep 20230.97189
5 Sep 20230.97389
25 Sep 20230.97322
25 Oct 20230.97317
19 Nov 20230.97211
20 Dec 20230.97165
25 Jan 20240.97153
6 Mar 20240.97048
14 Apr 20240.96973
26 May 20240.97085
5 Jul 20240.97044
26 Jul 20240.96748
12 Aug 20240.96498
22 Sep 20240.96770
13 Dec 20240.96458
17 Dec 20240.95560
22 Jan 20250.95594
4 Mar 20250.95804
17 Mar 20250.93929
19 Mar 20250.94103
15 Jun 20250.93929
24 Jun 20250.94103
23 Jul 20250.93929
5 Aug 20250.94103
16 Aug 20250.93929
22 Aug 20250.94103
16 Sep 20250.93929
6 Oct 20250.94103
17 Oct 20250.93929
7 Nov 20250.94103
13 Nov 20250.93929
18 Nov 20250.93102
21 Nov 20250.93929
27 Nov 20250.94103
18 Dec 20250.93929
20 Dec 20250.93888
26 Dec 20250.94073
18 Jan 20260.93888
5 Feb 20260.94073
11 Feb 20260.93888
11 Mar 20260.94073
21 Mar 20260.93888
27 Mar 20260.94073
21 Apr 20260.93888
9 May 20260.94073
22 May 20260.93888
12 Jun 20260.94073
15 Jun 20260.93361
21 Jun 20260.93289
24 Jul 20260.87417
28 Aug 20260.93289

64 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 0.93289Published2018-01-10Public PoC2018-01-11CISA KEV2021-11-03Index as of2026-09-04

Listed by CISA 1393 days after it published and the record had been public for 8 years, 7 months when this index was last written.

Published 2018-01-10 receipt · Public PoC 2018-01-11 receipt · CISA KEV 2021-11-03 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-787, out-of-bounds write. The index holds 14892 prior instances of this class, 163 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2024-30051 · Microsoft Windows 10 Version 1809matches 7 of 9KEV listed · 2024receipt
CVE-2023-23376 · Microsoft Windows 10 Version 1507matches 7 of 9KEV listed · 2023receipt
CVE-2023-28252 · Microsoft Windows 10 Version 1809matches 7 of 9KEV listed · 2023receipt
CVE-2022-2294 · Google Chromematches 7 of 9KEV listed · 2022receipt
CVE-2022-24521 · Microsoft Windows 10 Version 1809matches 7 of 9KEV listed · 2022receipt
CVE-2022-37969 · Microsoft Windows 10 Version 1809matches 7 of 9KEV listed · 2022receipt

"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

14892 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

microsoft corporation equation editor

Of the 3 records in this family, this is the only one with public proof-of-concept code, and it holds 6 references to it.

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

Family membership: held values

This record is one of a group, and the group's page describes all of them. 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

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.

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