CVE-2026-84334

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

Incorrect authorization in Chromoting in Google Chrome on on Windows prior to 152.0.7977.75 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: Medium)

CVSS v3
8.1
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
8.1(high)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
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/517798926
generic

Chrome Releases: Stable Channel Update for Desktop

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

Vendor Advisories for CVE-2026-84334(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 36× in last 7d / 123× 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 123 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84334?
CVE-2026-84334 is a high vulnerability published on September 1, 2026. Incorrect authorization in Chromoting in Google Chrome on on Windows prior to 152.0.7977.75 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: Medium)
When was CVE-2026-84334 disclosed?
CVE-2026-84334 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-2026-84334 actively exploited?
CVE-2026-84334 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 98.3% of all scored CVEs.
What is the CVSS score of CVE-2026-84334?
CVE-2026-84334 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-84334?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84334, 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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