CVE-2026-84347

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

Use after free in WebRTC in Google Chrome prior to 152.0.7977.75 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3
8.8
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 3, 2026

Advisory Details (2)

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

Chromium

https://issues.chromium.org/issues/501679156
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop.html

Vendor Advisories for CVE-2026-84347(2)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
chromium113.0.5672.126-1 ... 152.0.7977.64-1 (412 versions)152.0.7977.75-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 152.0.7977.75-1~deb12u1 (178 versions)152.0.7977.75-1~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 152.0.7977.75-1~deb13u1 (180 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 41× in last 7d / 132× 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 132 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84347?
CVE-2026-84347 is a high vulnerability published on September 1, 2026. Use after free in WebRTC in Google Chrome prior to 152.0.7977.75 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
When was CVE-2026-84347 disclosed?
CVE-2026-84347 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84347 actively exploited?
CVE-2026-84347 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 58.2% of all scored CVEs.
What is the CVSS score of CVE-2026-84347?
CVE-2026-84347 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-84347?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84347, 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

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