CVE-2026-9964

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-05-29. 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
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.

Use after free in Bluetooth in Google Chrome on Mac prior to 148.0.7778.216 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code via a crafted Chrome Extension. (Chromium security severity: High)

CVSS v3
8.1
Vendor severity
HIGHper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: High)
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
14%
KEV
Not listed

Published

May 28, 2026

Last Modified

July 21, 2026

Advisory Details (2)

Auto-updated Jun 4, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/505190999
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html

Vendor Advisories for CVE-2026-9964(2)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
chromium100.0.4896.127-1 ... 99.0.4844.84-1~deb11u1 (500 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
chromium113.0.5672.126-1 ... 148.0.7778.96-3 (359 versions)148.0.7778.215-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 148.0.7778.96-3 (125 versions)148.0.7778.215-1~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 148.0.7778.96-3 (126 versions)148.0.7778.215-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 88× 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 300 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-9964?
CVE-2026-9964 is a high vulnerability published on May 28, 2026. Use after free in Bluetooth in Google Chrome on Mac prior to 148.0.7778.216 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code via a crafted Chrome Extension. (Chromium security severity: High)
When was CVE-2026-9964 disclosed?
CVE-2026-9964 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9964 actively exploited?
CVE-2026-9964 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 86.0% of all scored CVEs.
What is the CVSS score of CVE-2026-9964?
CVE-2026-9964 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-9964?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9964, 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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