CVE-2021-4102

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 2021-12-15), 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: 8%CVSS: 8.8Exploit: NoneExposed: 0

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

Use after free in V8 in Google Chrome prior to 96.0.4664.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

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
94.1%
KEV
⚠ Exploited

Published

February 11, 2022

Last Modified

October 24, 2025

Advisory Details (3)

Auto-updated Jun 1, 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-2021-4102
generic
https://crbug.com/1278387
generic🔴 Active Exploitation

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.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 69× in last 7d / 363× 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 690 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2021-4102?
CVE-2021-4102 is a high vulnerability published on February 11, 2022. Use after free in V8 in Google Chrome prior to 96.0.4664.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
When was CVE-2021-4102 disclosed?
CVE-2021-4102 was first published in the National Vulnerability Database on February 11, 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-2021-4102 actively exploited?
Yes. CISA added CVE-2021-4102 to the Known Exploited Vulnerabilities catalog on December 15, 2021, 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-2021-4102?
CVE-2021-4102 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-2021-4102?
CVE-2021-4102 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-2021-4102?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-4102, 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-2021-4102

Explore →

Is Your Infrastructure Affected by CVE-2021-4102?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs