CVE-2021-4102

CRITICALNVD 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
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 8%CVSS: 8.8Exploit: cisa kev · ssvc activeExposed: 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 PROB
8%
EPSS %ILE
94%
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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
chromium90.0.4430.212-1, 93.0.4577.82-197.0.4692.71-0.1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
chromium—97.0.4692.71-0.1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium—97.0.4692.71-0.1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium—97.0.4692.71-0.1—

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 96× 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 1,490 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2021-4102?
CVE-2021-4102 is a critical 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-4102

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