CVE-2025-10585

CRITICALNVD 9.89.8
EchelonGraph scoreHIGH confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-09-23), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: CISA Known Exploited Vulnerabilities catalog, EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this weekExploited in the wild

Also known asEUVD-2025-31006 (ENISA EUVD) · GHSA-hmrc-68hp-82x6 (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low or medium mission impact
CISA-KEV: ExploitedEPSS PROB: 9.0%CVSS: 9.8Exploit: Public PoCExposed services: Not assessed

A fix is available — apply it.

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)

CVSS v3
9.8
Vendor severity
HIGHper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: High)
EG Score
9.8CRITICALhigh confidence
EG Risk
84
EG Risk 84/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation100% × 40%
Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Attend at medium and Act at high mission impact.
Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
9.0%
EPSS %ILE
95th
KEV
⚠ Exploited

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
9.0% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
CISA KEV and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Attend at medium mission impactTrack at low, Attend at medium and Act at high mission impact.CISA BOD 26-04: 3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Attend at medium and Act at high mission impact.

A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.

The score's inputs: In CISA KEV yes (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

CISA required action“Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.”

Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_17.html · https://nvd.nist.gov/vuln/detail/CVE-2025-10585

Published

September 24, 2025

Last Modified

July 14, 2026

Advisory Details (4)

Auto-updated Nov 1, 2026
⚠️ Actively exploited (CISA KEV, CISA Vulnrichment). Patch available. Sources: cisa.
CISA🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-10585
Web page

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_17.html

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
chromium100.0.4896.127-1 ... 99.0.4844.84-1~deb11u1 (500 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
chromium113.0.5672.126-1 ... 140.0.7339.80-1~deb13u1 (254 versions)
  • every version up to 140.0.7339.185-1~deb12u1: fixed in 140.0.7339.185-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 140.0.7339.80-1~deb13u1 (20 versions)
  • every version up to 140.0.7339.185-1~deb13u1: fixed in 140.0.7339.185-1~deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 140.0.7339.80-1~deb13u1 (21 versions)
  • every version up to 140.0.7339.185-1: fixed in 140.0.7339.185-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 25× in last 7d / 207× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 2,035 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 1,935 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:41 UTCEPSS rescoreEPSS 9.0% · 95th percentile
  2. 2026-11-01 23:49 UTCEG score recompute
  3. 2026-11-01 23:49 UTCVendor advisory
  4. 2026-11-01 23:49 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  5. 2026-11-01 16:32 UTCEPSS rescoreEPSS 9.0% · 95th percentile
  6. 2026-11-01 00:10 UTCEG score recompute
  7. 2026-11-01 00:10 UTCVendor advisory
  8. 2026-11-01 00:10 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  9. 2026-10-31 16:30 UTCEPSS rescoreEPSS 9.0% · 95th percentile
  10. 2026-10-31 00:29 UTCEG score recompute
  11. 2026-10-31 00:29 UTCVendor advisory
  12. 2026-10-31 00:29 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  13. 2026-10-30 16:32 UTCEPSS rescoreEPSS 9.0% · 95th percentile
  14. 2026-10-30 00:50 UTCEG score recompute
  15. 2026-10-30 00:50 UTCVendor advisory
  16. 2026-10-30 00:50 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  17. 2026-10-29 16:31 UTCEPSS rescoreEPSS 9.0% · 95th percentile
  18. 2026-10-29 01:11 UTCEG score recompute
  19. 2026-10-29 01:11 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  20. 2026-10-28 16:30 UTCEPSS rescoreEPSS 9.0% · 95th percentile
  21. 2026-10-28 01:31 UTCEG score recompute
  22. 2026-10-28 01:30 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  23. 2026-10-27 16:30 UTCEPSS rescoreEPSS 9.0% · 95th percentile
  24. 2026-10-27 01:49 UTCEG score recompute
  25. 2026-10-27 01:48 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
Show 75 more
  1. 2026-10-26 16:29 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  2. 2026-10-26 02:07 UTCVendor advisory
  3. 2026-10-26 02:07 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  4. 2026-10-25 16:49 UTCEG score recompute
  5. 2026-10-25 16:30 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  6. 2026-10-25 02:29 UTCEG score recompute
  7. 2026-10-25 02:29 UTCVendor advisory
  8. 2026-10-25 02:28 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  9. 2026-10-24 16:30 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  10. 2026-10-24 02:49 UTCEG score recompute
  11. 2026-10-24 02:49 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  12. 2026-10-23 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  13. 2026-10-23 03:10 UTCEG score recompute
  14. 2026-10-23 03:10 UTCVendor advisory
  15. 2026-10-23 03:09 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-22 16:32 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  17. 2026-10-22 03:29 UTCEG score recompute
  18. 2026-10-22 03:29 UTCVendor advisory
  19. 2026-10-22 03:29 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  20. 2026-10-21 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  21. 2026-10-21 03:50 UTCEG score recompute
  22. 2026-10-21 03:50 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  23. 2026-10-20 16:31 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  24. 2026-10-20 04:10 UTCEG score recompute
  25. 2026-10-20 04:10 UTCVendor advisory
  26. 2026-10-20 04:09 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  27. 2026-10-19 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  28. 2026-10-19 04:28 UTCEG score recompute
  29. 2026-10-19 04:28 UTCVendor advisory
  30. 2026-10-19 04:28 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  31. 2026-10-18 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  32. 2026-10-18 04:47 UTCEG score recompute
  33. 2026-10-18 04:47 UTCVendor advisory
  34. 2026-10-18 04:47 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  35. 2026-10-17 16:32 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  36. 2026-10-17 05:07 UTCEG score recompute
  37. 2026-10-17 05:07 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  38. 2026-10-16 16:37 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  39. 2026-10-16 05:26 UTCEG score recompute
  40. 2026-10-16 05:25 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  41. 2026-10-15 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  42. 2026-10-15 05:45 UTCEG score recompute
  43. 2026-10-15 05:45 UTCVendor advisory
  44. 2026-10-15 05:44 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  45. 2026-10-14 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  46. 2026-10-14 06:04 UTCEG score recompute
  47. 2026-10-14 06:04 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  48. 2026-10-13 16:31 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  49. 2026-10-13 06:24 UTCVendor advisory
  50. 2026-10-13 06:24 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  51. 2026-10-12 17:27 UTCEG score recompute
  52. 2026-10-12 16:32 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  53. 2026-10-12 06:44 UTCVendor advisory
  54. 2026-10-12 06:44 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  55. 2026-10-12 03:01 UTCVendor advisory
  56. 2026-10-12 03:00 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  57. 2026-10-11 23:20 UTCVendor advisory
  58. 2026-10-11 23:20 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  59. 2026-10-11 19:41 UTCEG score recompute
  60. 2026-10-11 19:41 UTCVendor advisory
  61. 2026-10-11 19:41 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  62. 2026-10-11 19:07 UTCEG score recompute
  63. 2026-10-11 16:02 UTCVendor advisory
  64. 2026-10-11 16:02 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  65. 2026-10-11 15:48 UTCEG score recompute
  66. 2026-10-11 13:46 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  67. 2026-10-11 12:24 UTCEG score recompute
  68. 2026-10-11 12:24 UTCVendor advisory
  69. 2026-10-11 12:24 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  70. 2026-10-11 08:44 UTCVendor advisory
  71. 2026-10-11 08:43 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  72. 2026-10-11 05:03 UTCVendor advisory
  73. 2026-10-11 05:03 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8
  74. 2026-10-11 01:23 UTCVendor advisory
  75. 2026-10-11 01:23 UTCGHSA enrichmentGHSA-hmrc-68hp-82x6 · GitHub severity HIGH · GitHub CVSS 8.8

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.

  • GitHub PoCAdityaBhatt3010/CVE-2025-10585-The-Chrome-V8-Zero-Day
    Published Sep 19, 2025

    Google patched CVE-2025-10585, a Chrome V8 zero-day under active exploitation — here’s what it is, why it matters, and how to stay safe.

    Open source ↗

Frequently asked(6)

What is CVE-2025-10585?
CVE-2025-10585 is a critical-severity vulnerability; its CVE record was published on September 24, 2025. 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)
When was the CVE record for CVE-2025-10585 published?
The CVE record for CVE-2025-10585 was published on September 24, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 14, 2026; the record at its source may have been updated since.
Is CVE-2025-10585 actively exploited?
Yes. CISA added CVE-2025-10585 to the Known Exploited Vulnerabilities catalog on September 23, 2025, affecting Google Chromium V8. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2025-10585?
CVE-2025-10585 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2025-10585?
CVE-2025-10585 affects Google Chromium V8. The affected packages EchelonGraph has on record, with version ranges, are listed in the Affected Packages section of this page.
How do I remediate CVE-2025-10585?
A fix for CVE-2025-10585 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-10585 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-10585

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