vciy

CVE-2022-30173

INDEX BUILT · 2026-09-20

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Microsoft Excel Remote Code Execution Vulnerability

CVE-2022-301734 of 4 sources documented this
23

rank 23 = 1 + 17 + 0 + 5 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.02274  ·  without this subject the record ranks 22

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 6.8, from NVD  ·  without this subject the record ranks 6

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 23

How much of the world it touches

NVD CPE configurations

3 products in the CPE ranges  ·  without this subject the record ranks 18

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 23

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$113,000over the next 30 days, if this record is yours
Movement-$1.67Mon 2024-12-11, the last material move, 1 year, 8 months before this reading
Basisassumeda published average, not your estate

$113,000 = $4.99M incident cost x 1 exposure x 0.02274 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

0.02274EPSSNOT IN KEVas of 2026-09-20
Severity7.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2024-12-11, 629 days at 0.02, as of 2026-09-01. 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

Sources disagree here.

Severity score
Microsoft7.8 HIGHreceipt
NVD6.8 MEDIUMreceipt
Scoring standard
MicrosoftCVSS v3.1receipt
NVDCVSS v2.0receipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

Running Microsoft Excel 2016? 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

Set up a watchlist (needs a Practitioner account)

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

Choose your verdict, then sign in or use an email link. Your first 100 records are free. Evidence is frozen when the record is created.

Private to your organization unless you share it. Put the proof link in your ticket so a reviewer can inspect the basis for your call. See how decision records work.

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 · the CNA'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 in16.0.5356.1000; 15.0.5475.1000; 15.0.5459.1001receipt
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, the CNA7.8 HIGHreceipt
CVSS, NVD6.8 MEDIUMreceipt
Exploit probability0.02274 · top 18% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes53 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Excel 2016; Microsoft Excel 2013 Service Pack 1; Microsoft Office Web Apps Server 2013 Service Pack 1receipt
Published rangesmicrosoft excel 2013; microsoft excel 2016; microsoft office web apps server 2013receipt
Fixed in16.0.5356.1000; 15.0.5475.1000; 15.0.5459.1001receipt

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.

Did this affect your environment?Answering needs an account.

What it is stated by the CNA

Microsoft Excel Remote Code Execution Vulnerability receipt

NVD's analysis a second authority

severity
6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
affected versions
microsoft excel 2013; microsoft excel 2016; microsoft office web apps server 2013
also scored by
[email protected] 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

The CNA scored it 7.8 and NVD 6.8. Both are shown because both were published; we do not pick one.

check it yourself msrc.microsoft.com receipt

Dated events

2024-10-31EPSS moved 0.03 to 0.282024-11-27EPSS moved 0.03 to 0.422024-12-17EPSS moved 0.09 to 0.01

Movement the material steps

16 Jun 20220.01103
7 Mar 20230.00113 · scoring model v2023.03.01
31 Oct 20240.27880 · crossed 0.10
14 Nov 20240.02770 · crossed 0.10
27 Nov 20240.42356 · crossed 0.10
11 Dec 20240.08841 · crossed 0.10
17 Mar 20250.00464 · scoring model v2025.03.14
15 Jun 20260.02147 · scoring model v2026.06.15
1 Sep 20260.02274
Show all 53 observations
16 Jun 20220.01103
25 Jun 20220.01528
7 Mar 20230.00113
5 Jul 20230.00173
18 Jul 20230.00140
30 Jul 20230.00223
12 Aug 20230.00139
3 Oct 20230.00183
17 Oct 20230.00118
13 Nov 20230.00131
26 Nov 20230.00145
9 Dec 20230.00197
24 Dec 20230.00150
6 Jan 20240.00210
21 Jan 20240.00238
17 Apr 20240.00253
1 May 20240.00234
30 May 20240.00271
11 Jun 20240.00478
11 Jul 20240.00519
25 Jul 20240.00603
8 Aug 20240.00545
22 Aug 20240.00552
6 Sep 20240.00685
18 Sep 20240.01948
4 Oct 20240.01401
16 Oct 20240.03036
31 Oct 20240.27880
14 Nov 20240.02770
27 Nov 20240.42356
11 Dec 20240.08841
17 Dec 20240.00597
7 Jan 20250.00970
19 Jan 20250.00578
2 Feb 20250.00816
15 Feb 20250.00674
28 Feb 20250.00954
14 Mar 20250.01745
17 Mar 20250.00464
25 Mar 20250.00854
29 Mar 20250.02649
30 Mar 20250.00854
11 Apr 20250.00911
17 Jun 20250.01107
26 Jun 20250.02926
27 Jun 20250.02538
25 Aug 20250.02746
6 Apr 20260.0342
14 May 20260.03164
15 Jun 20260.02147
2 Jul 20260.02162
9 Aug 20260.02209
1 Sep 20260.02274

53 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 0.02274Published2022-06-15Index as of2026-09-01

The record had been public for 4 years, 2 months when this index was last written.

Published 2022-06-15 receipt · Index as of 2026-09-01 derived

Siblings and hubs

Records related to this one

Its defect family

microsoft excel

Of the 21 records in this family, this is the only one holding a stated fix version: 16.0.5356.1000; 15.0.5475.1000; 15.0.5459.1001.

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

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.

Browse the index from here

These are index-wide views, not findings about CVE-2022-30173.

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.