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CVE-2025-10585

INDEX BUILT · 2026-09-20

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Type confusion in V8 in Google Chrome prior to 140.0.7339.185 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page

CVE-2025-105854 of 4 sources documented this
75

rank 75 = 40 + 25 + 0 + 2 + 8

rank@v1 · act now

Someone is already using it

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

EPSS 0.05391 · CISA KEV listed  ·  without this subject the record ranks 35

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from NVD  ·  without this subject the record ranks 50

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 75

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 73

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$269,000over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$269,000 = $4.99M incident cost x 1 exposure x 0.05391 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

0.05391EPSSKEV · LISTED
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationin the wild · KEVreceipt
Defensefix version namedreceipt
Movementsteadyreceipt
PLATEAU10Minimal movement since 2025-09-25, 344 days at 0.05, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

This record is one instance of CWE-843, access of resource using incompatible type ('type confusion'). The index holds 923 prior instances of this class, 41 KEV-listed. taxonomy@v1

Full pattern panel

Color is a claim, not decoration:the hostile worldthe defenseno signal

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Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-843 Access of Resource Using Incompatible Type ('Type Confusion')receipt
Published consequencesCWE-843: Availability, Integrity, Confidentiality: Read Memory, Modify Memory, Execute Unauthorized Code or Commands, DoS: Crash, Exit, or Restart[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 in140.0.7339.185receipt
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 2025-10-14receipt
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.receipt

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2025-09-23.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 1 public repository2025-09-19receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2025-09-23receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.05391 · top 8% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byChromereceipt
Recorded changes59 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productGoogle Chromereceipt
Published rangesgoogle chrome < 140.0.7339.185receipt
Fixed in140.0.7339.185receipt

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

Type confusion in V8 in Google Chrome prior to 140.0.7339.185 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High) receipt

NVD's analysis a second authority

severity
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-843
affected versions
google chrome < 140.0.7339.185
also scored by
8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

check it yourself chromereleases.googleblog.com issues.chromium.org receipt

Dated events

2025-09-23Added to CISA KEV2025-10-14CISA remediation due

Movement the material steps

25 Sep 20250.04835
15 Jun 20260.05299 · scoring model v2026.06.15
28 Aug 20260.05391
Show all 45 observations
25 Sep 20250.04835
27 Sep 20250.0383
30 Sep 20250.04134
1 Oct 20250.04962
9 Oct 20250.04547
12 Oct 20250.01277
17 Oct 20250.00768
18 Oct 20250.00601
22 Oct 20250.00661
24 Oct 20250.00983
25 Oct 20250.0107
26 Oct 20250.0065
30 Oct 20250.00536
1 Nov 20250.00826
4 Nov 20250.00536
9 Nov 20250.00604
18 Nov 20250.02246
21 Nov 20250.00772
26 Nov 20250.00536
1 Dec 20250.00953
4 Dec 20250.00619
15 Dec 20250.00697
18 Dec 20250.0089
19 Dec 20250.00619
1 Jan 20260.00953
4 Jan 20260.00619
7 Jan 20260.00697
24 Jan 20260.00886
1 Feb 20260.01361
3 Feb 20260.01146
4 Feb 20260.00745
10 Feb 20260.00675
11 Feb 20260.00641
1 Mar 20260.01035
3 Mar 20260.01129
4 Mar 20260.007
20 May 20260.00793
29 May 20260.01535
6 Jun 20260.01576
10 Jun 20260.02127
15 Jun 20260.05299
20 Jun 20260.05419
15 Jul 20260.05426
24 Jul 20260.0543
28 Aug 20260.05391

45 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 0.05391Public PoC2025-09-19CISA KEV2025-09-23Published2025-09-24Index as of2026-09-04

The record had been public for 11 months when this index was last written.

Public PoC 2025-09-19 receipt · CISA KEV 2025-09-23 receipt · Published 2025-09-24 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-843, access of resource using incompatible type ('type confusion'). The index holds 923 prior instances of this class, 41 KEV-listed. [email protected]

CVE-2023-2033 · Google Chromematches 8 of 9KEV listed · 2023receipt
CVE-2023-3079 · Google Chromematches 8 of 9KEV listed · 2023receipt
CVE-2023-4762 · Google Chromematches 8 of 9KEV listed · 2023receipt
CVE-2022-1096 · Google Chromematches 8 of 9KEV listed · 2022receipt
CVE-2022-1364 · Google Chromematches 8 of 9KEV listed · 2022receipt
CVE-2022-3723 · Google Chromematches 8 of 9KEV listed · 2022receipt

923 records in this class held. The six above are ranked by exploit maturity, then recency.

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