CVE-2015-8543

HIGHNVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.2%CVSS: 7.0Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not validate protocol identifiers for certain protocol families, which allows local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application.

CVSS v3
7.0
EG Score
7.0HIGHmedium confidence
EG Risk
52
EG Risk 52/100CISA SSVC

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
Severity70% × 45%
Exploitation40% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.2%
EPSS %ILE
67th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (EG-KEV: elevated) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

December 28, 2015

Last Modified

May 6, 2026

References (40)

Patch Availability(12)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-image-extra-3.16.0-60-generic (3.16.0-60.80~14.04.1) @ trusty2026-05-22ubuntu
ubuntulinux-image-3.2.0-1476-omap4 (3.2.0-1476.99) @ precise2026-05-22ubuntu
ubuntulinux-image-extra-3.13.0-79-generic (3.13.0-79.123) @ trusty2026-05-22ubuntu
ubuntulinux-image-4.2.0-1022-raspi2 (4.2.0-1022.29) @ wily2026-05-22ubuntu
ubuntulinux-image-3.13.0-79-generic (3.13.0-79.123~precise1) @ precise2026-05-22ubuntu
ubuntulinux-image-3.2.0-98-powerpc64-smp (3.2.0-98.138) @ precise2026-05-22ubuntu
ubuntulinux-image-4.2.0-27-generic (4.2.0-27.32) @ wily2026-05-22ubuntu
ubuntulinux-image-extra-4.2.0-27-generic (4.2.0-27.32~14.04.1) @ trusty2026-05-22ubuntu
ubuntulinux-image-extra-3.19.0-51-generic (3.19.0-51.57~14.04.1) @ trusty2026-05-22ubuntu
redhatkernel-0:3.10.0-514.el72016-11-03redhat
redhatkernel-rt-0:3.10.0-514.rt56.420.el72016-11-03redhat
redhatkernel-0:2.6.32-642.el62016-05-10redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.3.3-1: fixed in 4.3.3-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.3.3-1: fixed in 4.3.3-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.3.3-1: fixed in 4.3.3-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.3.3-1: fixed in 4.3.3-1
—
Debian:6.0(1)
PackageVulnerable rangeFix by version rangeDependents
linux-2.62.6.32-30 ... 2.6.32-48squeeze9 (43 versions)
  • every version up to 2.6.32-48squeeze18: fixed in 2.6.32-48squeeze18
—

All Vendor Advisories

(12)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 6× in last 7d / 23× 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 158 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCbittorrent3389/CVE-2015-8543_for_SLE12SP1
    First seen Apr 12, 2016
    Open source ↗

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2015-8543?
CVE-2015-8543 is a high vulnerability published on December 28, 2015. The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not validate protocol identifiers for certain protocol families, which allows local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain…
When was CVE-2015-8543 disclosed?
CVE-2015-8543 was first published on December 28, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-8543 actively exploited?
CVE-2015-8543 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.2% probability of exploitation in the next 30 days (67th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2015-8543?
CVE-2015-8543 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2015-8543?
A fix for CVE-2015-8543 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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