CVE-2026-14420

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.6Exploit: NoneExposed: 0

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

Out of bounds read and write in Dawn in Google Chrome prior to 150.0.7871.46 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

CVSS v3
9.6
EG Score
9.6(high)
EPSS
16.5%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 3, 2026

Advisory Details (2)

Auto-updated Jul 2, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/517031505
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html

Vendor Advisories for CVE-2026-14420(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 73× in last 7d / 73× 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.

  1. 2026-07-07 04:29 UTCEG score recompute
  2. 2026-07-07 04:29 UTCGHSA enrichment
  3. 2026-07-07 00:45 UTCEG score recompute
  4. 2026-07-07 00:45 UTCGHSA enrichment
  5. 2026-07-06 21:02 UTCEG score recompute
  6. 2026-07-06 21:01 UTCGHSA enrichment
  7. 2026-07-06 17:17 UTCEG score recompute
  8. 2026-07-06 17:17 UTCGHSA enrichment
  9. 2026-07-06 16:27 UTCEPSS rescore
  10. 2026-07-06 13:28 UTCEG score recompute
  11. 2026-07-06 13:28 UTCGHSA enrichment
  12. 2026-07-06 09:42 UTCEG score recompute
  13. 2026-07-06 09:42 UTCGHSA enrichment
  14. 2026-07-06 05:58 UTCEG score recompute
  15. 2026-07-06 05:58 UTCGHSA enrichment
  16. 2026-07-06 02:23 UTCEPSS rescore
  17. 2026-07-06 02:13 UTCEG score recompute
  18. 2026-07-06 02:13 UTCGHSA enrichment
  19. 2026-07-05 22:29 UTCEG score recompute
  20. 2026-07-05 22:29 UTCGHSA enrichment
  21. 2026-07-05 18:46 UTCEG score recompute
  22. 2026-07-05 18:46 UTCGHSA enrichment
  23. 2026-07-05 15:02 UTCEG score recompute
  24. 2026-07-05 15:02 UTCGHSA enrichment
  25. 2026-07-05 11:19 UTCEG score recompute
Show 48 more
  1. 2026-07-05 11:19 UTCGHSA enrichment
  2. 2026-07-05 07:36 UTCEG score recompute
  3. 2026-07-05 07:36 UTCGHSA enrichment
  4. 2026-07-05 03:53 UTCEG score recompute
  5. 2026-07-05 03:53 UTCGHSA enrichment
  6. 2026-07-05 02:30 UTCEPSS rescore
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-05 00:06 UTCEG score recompute
  9. 2026-07-05 00:05 UTCGHSA enrichment
  10. 2026-07-04 20:21 UTCEG score recompute
  11. 2026-07-04 20:21 UTCGHSA enrichment
  12. 2026-07-04 16:38 UTCEG score recompute
  13. 2026-07-04 16:38 UTCGHSA enrichment
  14. 2026-07-04 12:54 UTCEG score recompute
  15. 2026-07-04 12:54 UTCGHSA enrichment
  16. 2026-07-04 09:11 UTCEG score recompute
  17. 2026-07-04 09:11 UTCGHSA enrichment
  18. 2026-07-04 06:31 UTCEPSS rescore
  19. 2026-07-04 05:27 UTCEG score recompute
  20. 2026-07-04 05:27 UTCGHSA enrichment
  21. 2026-07-04 01:43 UTCEG score recompute
  22. 2026-07-04 01:43 UTCGHSA enrichment
  23. 2026-07-03 21:59 UTCEG score recompute
  24. 2026-07-03 21:59 UTCGHSA enrichment
  25. 2026-07-03 18:16 UTCEG score recompute
  26. 2026-07-03 18:16 UTCGHSA enrichment
  27. 2026-07-03 14:33 UTCEG score recompute
  28. 2026-07-03 14:33 UTCGHSA enrichment
  29. 2026-07-03 10:49 UTCEG score recompute
  30. 2026-07-03 10:49 UTCGHSA enrichment
  31. 2026-07-03 07:05 UTCEG score recompute
  32. 2026-07-03 07:05 UTCGHSA enrichment
  33. 2026-07-03 03:21 UTCEG score recompute
  34. 2026-07-03 03:21 UTCGHSA enrichment
  35. 2026-07-02 23:38 UTCEG score recompute
  36. 2026-07-02 23:38 UTCGHSA enrichment
  37. 2026-07-02 19:55 UTCEG score recompute
  38. 2026-07-02 19:55 UTCGHSA enrichment
  39. 2026-07-02 16:13 UTCEG score recompute
  40. 2026-07-02 16:13 UTCGHSA enrichment
  41. 2026-07-02 12:29 UTCEG score recompute
  42. 2026-07-02 12:29 UTCGHSA enrichment
  43. 2026-07-02 08:46 UTCEG score recompute
  44. 2026-07-02 08:45 UTCGHSA enrichment
  45. 2026-07-02 05:01 UTCEG score recompute
  46. 2026-07-02 05:01 UTCGHSA enrichment
  47. 2026-07-02 01:18 UTCEG score recompute
  48. 2026-07-02 01:18 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-14420?
CVE-2026-14420 is a critical vulnerability published on July 2, 2026. Out of bounds read and write in Dawn in Google Chrome prior to 150.0.7871.46 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
When was CVE-2026-14420 disclosed?
CVE-2026-14420 was first published in the National Vulnerability Database on July 2, 2026, with the most recent update on July 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14420 actively exploited?
CVE-2026-14420 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-14420?
CVE-2026-14420 has a CVSS v3.1 base score of 9.6 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-14420?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14420, 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-2026-14420

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