CVE-2021-38000

CRITICALNVD 6.19.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 6.1 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: 4%CVSS: 6.1Exploit: cisa kev · ssvc activeExposed: 0

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

Insufficient validation of untrusted input in Intents in Google Chrome on Android prior to 95.0.4638.69 allowed a remote attacker to arbitrarily browser to a malicious URL via a crafted HTML page.

CVSS v3
6.1
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
4%
EPSS %ILE
90%
KEV
⚠ Exploited

Published

November 23, 2021

Last Modified

October 24, 2025

Advisory Details (5)

Auto-updated Jun 13, 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-2021-38000
generic

[SECURITY] [DSA 5046-1] chromium security update

https://www.debian.org/security/2022/dsa-5046
generic

[SECURITY] Fedora 34 Update: chromium-96.0.4664.110-3.fc34 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3W46HRT2UVHWSLZB6JZHQF6JNQWKV744/
generic
https://crbug.com/1249962
generic🔴 Active Exploitation

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_28.html

Weakness Classification(2)

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 64× in last 7d / 370× 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 753 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2021-38000?
CVE-2021-38000 is a critical vulnerability published on November 23, 2021. Insufficient validation of untrusted input in Intents in Google Chrome on Android prior to 95.0.4638.69 allowed a remote attacker to arbitrarily browser to a malicious URL via a crafted HTML page.
When was CVE-2021-38000 disclosed?
CVE-2021-38000 was first published in the National Vulnerability Database on November 23, 2021, 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-2021-38000 actively exploited?
Yes. CISA added CVE-2021-38000 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Google Chromium Intents. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2021-38000?
CVE-2021-38000 has a CVSS v3 base score of 6.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2021-38000?
CVE-2021-38000 affects Google Chromium Intents. 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-2021-38000?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-38000, 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-2021-38000

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