CVE-2015-8816

MEDIUMNVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

Score 6.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.8Exploit: None knownExposed: 0

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

The hub_activate function in drivers/usb/core/hub.c in the Linux kernel before 4.3.5 does not properly maintain a hub-interface data structure, which allows physically proximate attackers to cause a denial of service (invalid memory access and system crash) or possibly have unspecified other impact by unplugging a USB hub device.

CVSS v3
6.8
EG Score
6.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity68% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

April 27, 2016

Last Modified

June 17, 2026

References (54)

Affected Packages

(6 across 6 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux—4.4.2-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—4.4.2-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—4.4.2-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—4.4.2-1—
Debian:7(1)
PackageVulnerable rangeFixed inDependents
linux3.2.41-2 ... 3.2.73-2+deb7u2~bpo60+1 (56 versions)3.2.73-2+deb7u3—
Debian:8(1)
PackageVulnerable rangeFixed inDependents
linux3.16.7-ckt11-1 ... 3.16.7-ckt9-3~deb8u1~bpo70+1 (24 versions)3.16.7-ckt20-1+deb8u4—

Data Freshness Timeline

(refreshed 6× in last 7d / 26× 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 125 total refreshes for this CVE.

  1. 2026-08-21 23:44 UTCEPSS rescore
  2. 2026-08-20 22:50 UTCEPSS rescore
  3. 2026-08-19 16:59 UTCEPSS rescore
  4. 2026-08-18 13:43 UTCEPSS rescore
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  8. 2026-08-14 12:54 UTCOSV refresh
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  21. 2026-07-30 01:07 UTCOSV refresh
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  1. 2026-07-23 14:14 UTCEPSS rescore
  2. 2026-07-23 01:20 UTCEG score recompute
  3. 2026-07-23 00:21 UTCEG score recompute
  4. 2026-07-22 22:00 UTCEG score recompute
  5. 2026-07-22 14:04 UTCEPSS rescore
  6. 2026-07-21 15:21 UTCEPSS rescore
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  8. 2026-07-20 17:03 UTCEPSS rescore
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  18. 2026-07-13 22:26 UTCEPSS rescore
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  20. 2026-07-12 10:08 UTCOSV refresh
  21. 2026-07-12 05:42 UTCEPSS rescore
  22. 2026-07-11 08:23 UTCEPSS rescore
  23. 2026-07-09 19:05 UTCEPSS rescore
  24. 2026-07-09 19:05 UTCEPSS rescore
  25. 2026-07-08 15:10 UTCEPSS rescore
  26. 2026-07-07 13:42 UTCEPSS rescore
  27. 2026-07-07 13:42 UTCEPSS rescore
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  40. 2026-06-25 13:47 UTCEPSS rescore
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  44. 2026-06-23 21:30 UTCEPSS rescore
  45. 2026-06-23 15:50 UTCOSV refresh
  46. 2026-06-22 14:23 UTCEPSS rescore
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  48. 2026-06-21 14:54 UTCEPSS rescore
  49. 2026-06-21 14:54 UTCEPSS rescore
  50. 2026-06-21 01:57 UTCEPSS rescore
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  52. 2026-06-19 19:23 UTCEPSS rescore
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  54. 2026-06-18 17:50 UTCEPSS rescore
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  66. 2026-06-10 22:15 UTCEPSS rescore
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  68. 2026-06-08 14:14 UTCEPSS rescore
  69. 2026-06-07 15:22 UTCEPSS rescore
  70. 2026-06-06 20:29 UTCOSV refresh
  71. 2026-06-06 13:45 UTCEPSS rescore
  72. 2026-06-05 22:44 UTCEPSS rescore
  73. 2026-06-05 06:08 UTCEPSS rescore
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  75. 2026-06-04 13:10 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-8816?
CVE-2015-8816 is a medium vulnerability published on April 27, 2016. The hub_activate function in drivers/usb/core/hub.c in the Linux kernel before 4.3.5 does not properly maintain a hub-interface data structure, which allows physically proximate attackers to cause a denial of service (invalid memory access and system crash) or possibly have unspecified other impact…
When was CVE-2015-8816 disclosed?
CVE-2015-8816 was first published in the National Vulnerability Database on April 27, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-8816 actively exploited?
CVE-2015-8816 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 56.5% of all scored CVEs.
What is the CVSS score of CVE-2015-8816?
CVE-2015-8816 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2015-8816?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-8816, 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.

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