CVE-2025-6554

CRITICALPre-NVD 8.19.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-07-02), indicating real-world exploitation has been confirmed by US federal agencies. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1 retained for reference (NVD's own analysis pending). Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa-adp, cisa_kev, epss, ghsa
Trending — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 9%CVSS: 8.1Exploit: cisa kev · ssvc active · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Type confusion in V8 in Google Chrome prior to 138.0.7204.96 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)

CVSS v3
8.1
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
9%
EPSS %ILE
95%
KEV
⚠ Exploited

Published

June 30, 2025

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Jun 3, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 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-2025-6554
generic🔴 Active Exploitation

Chromium

https://issues.chromium.org/issues/427663123
generic🔴 Active Exploitation

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop_30.html

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 62× in last 7d / 356× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 706 total refreshes for this CVE.

  1. 2026-07-28 06:29 UTCVendor advisory
  2. 2026-07-28 06:29 UTCGHSA enrichment
  3. 2026-07-28 02:05 UTCVendor advisory
  4. 2026-07-28 02:05 UTCGHSA enrichment
  5. 2026-07-27 21:43 UTCVendor advisory
  6. 2026-07-27 21:43 UTCGHSA enrichment
  7. 2026-07-27 19:24 UTCCISA KEV update
  8. 2026-07-27 17:19 UTCEG score recompute
  9. 2026-07-27 17:19 UTCVendor advisory
  10. 2026-07-27 17:19 UTCGHSA enrichment
  11. 2026-07-27 17:17 UTCCISA KEV update
  12. 2026-07-27 14:13 UTCEPSS rescore
  13. 2026-07-27 12:56 UTCVendor advisory
  14. 2026-07-27 12:56 UTCGHSA enrichment
  15. 2026-07-27 08:31 UTCVendor advisory
  16. 2026-07-27 08:31 UTCGHSA enrichment
  17. 2026-07-27 04:08 UTCVendor advisory
  18. 2026-07-27 04:07 UTCGHSA enrichment
  19. 2026-07-26 23:44 UTCVendor advisory
  20. 2026-07-26 23:44 UTCGHSA enrichment
  21. 2026-07-26 19:21 UTCVendor advisory
  22. 2026-07-26 19:21 UTCGHSA enrichment
  23. 2026-07-26 14:57 UTCVendor advisory
  24. 2026-07-26 14:57 UTCGHSA enrichment
  25. 2026-07-26 10:34 UTCEG score recompute
Show 75 more
  1. 2026-07-26 10:34 UTCVendor advisory
  2. 2026-07-26 10:33 UTCGHSA enrichment
  3. 2026-07-26 06:09 UTCVendor advisory
  4. 2026-07-26 06:09 UTCGHSA enrichment
  5. 2026-07-26 01:46 UTCEG score recompute
  6. 2026-07-26 01:46 UTCVendor advisory
  7. 2026-07-26 01:46 UTCGHSA enrichment
  8. 2026-07-25 14:17 UTCEPSS rescore
  9. 2026-07-25 14:17 UTCEPSS rescore
  10. 2026-07-24 14:17 UTCEPSS rescore
  11. 2026-07-23 14:18 UTCEPSS rescore
  12. 2026-07-23 14:18 UTCEPSS rescore
  13. 2026-07-23 03:01 UTCEG score recompute
  14. 2026-07-22 22:22 UTCEG score recompute
  15. 2026-07-22 22:22 UTCVendor advisory
  16. 2026-07-22 22:22 UTCGHSA enrichment
  17. 2026-07-22 19:40 UTCCISA KEV update
  18. 2026-07-22 17:57 UTCEG score recompute
  19. 2026-07-22 17:57 UTCGHSA enrichment
  20. 2026-07-22 14:08 UTCEPSS rescore
  21. 2026-07-22 13:32 UTCVendor advisory
  22. 2026-07-22 13:32 UTCGHSA enrichment
  23. 2026-07-22 09:09 UTCVendor advisory
  24. 2026-07-22 09:09 UTCGHSA enrichment
  25. 2026-07-22 04:46 UTCVendor advisory
  26. 2026-07-22 04:46 UTCGHSA enrichment
  27. 2026-07-22 00:22 UTCVendor advisory
  28. 2026-07-22 00:22 UTCGHSA enrichment
  29. 2026-07-21 19:59 UTCVendor advisory
  30. 2026-07-21 19:58 UTCGHSA enrichment
  31. 2026-07-21 15:34 UTCEG score recompute
  32. 2026-07-21 15:34 UTCVendor advisory
  33. 2026-07-21 15:34 UTCGHSA enrichment
  34. 2026-07-21 15:24 UTCEPSS rescore
  35. 2026-07-21 14:37 UTCCISA KEV update
  36. 2026-07-21 11:11 UTCVendor advisory
  37. 2026-07-21 11:10 UTCGHSA enrichment
  38. 2026-07-21 06:45 UTCVendor advisory
  39. 2026-07-21 06:44 UTCGHSA enrichment
  40. 2026-07-21 02:22 UTCVendor advisory
  41. 2026-07-21 02:21 UTCGHSA enrichment
  42. 2026-07-20 21:58 UTCVendor advisory
  43. 2026-07-20 21:58 UTCGHSA enrichment
  44. 2026-07-20 17:35 UTCEG score recompute
  45. 2026-07-20 17:35 UTCVendor advisory
  46. 2026-07-20 17:35 UTCGHSA enrichment
  47. 2026-07-20 17:08 UTCEPSS rescore
  48. 2026-07-20 13:12 UTCGHSA enrichment
  49. 2026-07-20 08:49 UTCVendor advisory
  50. 2026-07-20 08:49 UTCGHSA enrichment
  51. 2026-07-20 04:26 UTCVendor advisory
  52. 2026-07-20 04:26 UTCGHSA enrichment
  53. 2026-07-20 00:03 UTCVendor advisory
  54. 2026-07-20 00:02 UTCGHSA enrichment
  55. 2026-07-19 19:39 UTCVendor advisory
  56. 2026-07-19 19:39 UTCGHSA enrichment
  57. 2026-07-19 15:16 UTCEG score recompute
  58. 2026-07-19 15:16 UTCVendor advisory
  59. 2026-07-19 15:16 UTCGHSA enrichment
  60. 2026-07-19 14:30 UTCEPSS rescore
  61. 2026-07-19 14:30 UTCEPSS rescore
  62. 2026-07-19 10:53 UTCVendor advisory
  63. 2026-07-19 10:53 UTCGHSA enrichment
  64. 2026-07-19 06:30 UTCEG score recompute
  65. 2026-07-19 06:30 UTCVendor advisory
  66. 2026-07-19 06:30 UTCGHSA enrichment
  67. 2026-07-19 02:28 UTCEPSS rescore
  68. 2026-07-19 02:28 UTCEPSS rescore
  69. 2026-07-19 02:07 UTCGHSA enrichment
  70. 2026-07-18 21:43 UTCVendor advisory
  71. 2026-07-18 21:43 UTCGHSA enrichment
  72. 2026-07-18 17:20 UTCVendor advisory
  73. 2026-07-18 17:20 UTCGHSA enrichment
  74. 2026-07-18 12:57 UTCEG score recompute
  75. 2026-07-18 12:57 UTCVendor advisory

Publicly available exploits

(4 references)

Working exploit code is in the public domain (4 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCaklnjakln/CVE-2025-6554
    First seen Nov 25, 2025
    Open source ↗
  • GitHub PoCMuhammednihalmp/Google-chrome-zero-day
    First seen Nov 9, 2025

    CVE-2025-6554

    Open source ↗
  • GitHub PoCPwnToday/CVE-2025-6554
    First seen Jul 7, 2025
    Open source ↗
  • GitHub PoCgmh5225/CVE-2025-6554-2
    First seen Jul 5, 2025
    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2025-6554?
CVE-2025-6554 is a critical vulnerability published on June 30, 2025. Type confusion in V8 in Google Chrome prior to 138.0.7204.96 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)
When was CVE-2025-6554 disclosed?
CVE-2025-6554 was first published in the National Vulnerability Database on June 30, 2025, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-6554 actively exploited?
Yes. CISA added CVE-2025-6554 to the Known Exploited Vulnerabilities catalog on July 2, 2025, affecting Google Chromium V8. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-6554?
CVE-2025-6554 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2025-6554?
CVE-2025-6554 affects Google Chromium V8. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2025-6554?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-6554, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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