CVE-2022-4262

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-12-05), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 16%CVSS: 8.8Exploit: NoneExposed: 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 108.0.5359.94 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

CVSS v3
8.8
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
96.6%
KEV
⚠ Exploited

Published

December 2, 2022

Last Modified

October 24, 2025

Advisory Details (3)

Auto-updated Jun 2, 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-2022-4262
generic
https://crbug.com/1394403
generic🔴 Active Exploitation

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2022/12/stable-channel-update-for-desktop.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 94× in last 7d / 396× 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 712 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCmistymntncop/CVE-2022-4262
    First seen Jan 24, 2024
    Open source ↗
  • GitHub PoCbjrjk/CVE-2022-4262
    First seen Jul 13, 2023

    Full Chain Analysis of CVE-2022-4262, a non-trivial feedback slot type confusion in V8.

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2022-4262?
CVE-2022-4262 is a high vulnerability published on December 2, 2022. Type confusion in V8 in Google Chrome prior to 108.0.5359.94 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
When was CVE-2022-4262 disclosed?
CVE-2022-4262 was first published in the National Vulnerability Database on December 2, 2022, with the most recent update on October 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-4262 actively exploited?
Yes. CISA added CVE-2022-4262 to the Known Exploited Vulnerabilities catalog on December 5, 2022, 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-2022-4262?
CVE-2022-4262 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2022-4262?
CVE-2022-4262 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-2022-4262?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-4262, 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

Explore the affected products and dependency analysis for CVE-2022-4262

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