vciy

CVE-2024-29988

INDEX BUILT · 2026-09-20

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SmartScreen Prompt Security Feature Bypass Vulnerability

CVE-2024-299884 of 4 sources documented this
77

rank 77 = 40 + 22 + 1 + 8 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.44875 · CISA KEV listed  ·  without this subject the record ranks 37

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, from the CNA  ·  without this subject the record ranks 55

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-10-22  ·  without this subject the record ranks 76

How much of the world it touches

NVD CPE configurations

9 products in the CPE ranges  ·  without this subject the record ranks 69

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 71

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.24Mover the next 30 days, if this record is yours
Movement+$1.23Mon 2025-05-18, the last material move, 1 year, 3 months before this reading
Basisassumeda published average, not your estate

$2.24M = $4.99M incident cost x 1 exposure x 0.44875 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

0.44875EPSSKEV · LISTED
Severity8.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationin the wild · KEVreceipt
Defensefix version namedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 91 days at 0.45, as of 2026-09-14. arc-rules@v1

Foresight · where to check next

Microsoft WindowsMicrosoft WindowsMicrosoft OfficeSolarWinds Web29988

This record is one instance of CWE-693, protection mechanism failure. The index holds 839 prior instances of this class, 13 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 Windows 10 Version 1809? Check your version

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no privileges required · user interaction required · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-693 Protection Mechanism Failurereceipt
Published consequencesCWE-693: Access Control: Bypass Protection Mechanism[email protected]
Ransomware campaign useUnknown to CISAreceipt

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed in10.0.17763.5696; 10.0.20348.2402; 10.0.22000.2899; 10.0.19044.4291; 10.0.22621.3447; 10.0.19045.4291; 10.0.22631.3447; 10.0.25398.830receipt
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 2024-05-21receipt
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.receipt
Published to CISA KEV21 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2024-04-30.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 2 public repositories2024-05-03receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2024-04-30receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA8.8 HIGHreceipt
Exploit probability0.44875 · top 1% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes48 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Windows 10 Version 1809; Microsoft Windows Server 2019; Microsoft Windows Server 2019 (Server Core installation); Microsoft Windows Server 2022; Microsoft Windows 11 version 21H2…receipt
Published rangesmicrosoft windows 10 1809 < 10.0.17763.5696; microsoft windows 10 21h2 < 10.0.19044.4291; microsoft windows 10 22h2 < 10.0.19045.4291; microsoft windows 11 21h2 < 10.0.22000.2899receipt
Show all 9 published ranges
microsoft windows 10 1809 < 10.0.17763.5696
microsoft windows 10 21h2 < 10.0.19044.4291
microsoft windows 10 22h2 < 10.0.19045.4291
microsoft windows 11 21h2 < 10.0.22000.2899
microsoft windows 11 22h2 < 10.0.22621.3447
microsoft windows 11 23h2 < 10.0.22631.3447
microsoft windows server 2019 < 10.0.17763.5696
microsoft windows server 2022 < 10.0.20348.2402
microsoft windows server 2022 23h2 < 10.0.25398.830
Fixed in10.0.17763.5696; 10.0.20348.2402; 10.0.22000.2899; 10.0.19044.4291; 10.0.22621.3447; 10.0.19045.4291; 10.0.22631.3447; 10.0.25398.830receipt

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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Attack path

Network requestrequires user interactionCISA KEV listingadded 04-30 · due 05-21Microsoft Windows Server 2019CWE-693 weaknessFull compromise (C/I/A)C:H / I:H / A:Hmandates remediationexploits CWE-693data compromise

What it is stated by the CNA

SmartScreen Prompt Security Feature Bypass Vulnerability receipt

NVD's analysis a second authority

weakness
CWE-693
affected versions
microsoft windows 10 1809 < 10.0.17763.5696; microsoft windows 10 21h2 < 10.0.19044.4291; microsoft windows 10 22h2 < 10.0.19045.4291; and 6 more, listed in full below
also scored by
[email protected] 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

check it yourself msrc.microsoft.com receipt

Dated events

2024-04-30Added to CISA KEV2024-05-21CISA remediation due2025-03-17EPSS moved 0.03 to 0.762026-06-15EPSS moved 0.63 to 0.45

Movement the material steps

10 Apr 20240.00043
17 Mar 20250.76398 · crossed 0.10 and 0.50 · scoring model v2025.03.14
19 Mar 20250.87263
20 Mar 20250.76398
27 Mar 20250.87263
28 Mar 20250.76398
29 Mar 20250.87263
30 Mar 20250.76398
15 Apr 20250.35617 · crossed 0.50
18 May 20250.62587 · crossed 0.50
18 Nov 20250.75817
18 Mar 20260.62768
15 Jun 20260.45151 · crossed 0.50 · scoring model v2026.06.15
14 Sep 20260.44875
Show all 34 observations
10 Apr 20240.00043
11 Apr 20240.00065
21 Apr 20240.00124
1 May 20240.00875
4 May 20240.00455
12 May 20240.00363
17 Jul 20240.00226
12 Sep 20240.00298
26 Nov 20240.00337
17 Dec 20240.02714
20 Dec 20240.02206
3 Feb 20250.02228
10 Mar 20250.02838
17 Mar 20250.76398
19 Mar 20250.87263
20 Mar 20250.76398
27 Mar 20250.87263
28 Mar 20250.76398
29 Mar 20250.87263
30 Mar 20250.76398
15 Apr 20250.35617
21 Apr 20250.33151
9 May 20250.37985
18 May 20250.62587
25 May 20250.64766
22 Oct 20250.6983
29 Oct 20250.66838
18 Nov 20250.75817
21 Nov 20250.66838
18 Mar 20260.62768
6 May 20260.60504
9 Jun 20260.62768
15 Jun 20260.45151
14 Sep 20260.44875

34 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 0.44875Published2024-04-09CISA KEV2024-04-30Public PoC2024-05-03Index as of2026-09-14

Listed by CISA 21 days after it published and the record had been public for 2 years, 5 months when this index was last written.

Published 2024-04-09 receipt · CISA KEV 2024-04-30 receipt · Public PoC 2024-05-03 receipt · Index as of 2026-09-14 derived

The pattern, elsewhere

This record is one instance of CWE-693, protection mechanism failure. The index holds 839 prior instances of this class, 13 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2026-21510 · Microsoft Windows 10 Version 1607matches 9 of 9KEV listed · 2026receipt
CVE-2026-21513 · Microsoft Windows 10 Version 1607matches 9 of 9KEV listed · 2026receipt
CVE-2024-21412 · Microsoft Windows 10 Version 1809matches 8 of 9KEV listed · 2024receipt
CVE-2024-38213 · Microsoft Windows 10 Version 1809matches 7 of 9KEV listed · 2024receipt
CVE-2024-38226 · Microsoft Office 2019matches 7 of 9KEV listed · 2024receipt
CVE-2025-40536 · SolarWinds Web Help Deskmatches 6 of 9KEV listed · 2026receipt

"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

839 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.

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