CVE-2015-5283

MEDIUMCVSS v2 · 4.74.7—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 4.7 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:L/AC:M/Au:N/C:N/I:N/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 0.5% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
4.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS v2: 4.7Exploit: None knownExposed: 0

A fix is available — apply it.

The sctp_init function in net/sctp/protocol.c in the Linux kernel before 4.2.3 has an incorrect sequence of protocol-initialization steps, which allows local users to cause a denial of service (panic or memory corruption) by creating SCTP sockets before all of the steps have finished.

CVSS v2.0 (legacy)
4.7MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
4.7(low)
EG Risk
26(Track)
EG Risk 26/100SSVC: 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
Severity47% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

October 19, 2015

Last Modified

May 6, 2026

References (32)

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-3.13.0-71-generic (3.13.0-71.114~precise1) @ precise2026-05-22ubuntu
ubuntulinux-image-3.19.0-39-lowlatency (3.19.0-39.44) @ vivid2026-05-22ubuntu
ubuntulinux-image-extra-3.19.0-39-generic (3.19.0-39.44~14.04.1) @ trusty2026-05-22ubuntu
ubuntulinux-image-extra-3.13.0-71-generic (3.13.0-71.114) @ trusty2026-05-22ubuntu
ubuntulinux-image-extra-3.16.0-52-generic (3.16.0-52.71~14.04.1) @ trusty2026-05-22ubuntu
redhatkernel-rt-0:3.10.0-327.rt56.204.el72015-11-19redhat
redhatkernel-0:3.10.0-327.el72015-11-19redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux—4.2.1-2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—4.2.1-2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—4.2.1-2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—4.2.1-2—

All Vendor Advisories

(7)

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 7× in last 7d / 28× 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 129 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
  5. 2026-08-16 14:51 UTCEPSS rescore
  6. 2026-08-16 02:09 UTCEPSS rescore
  7. 2026-08-15 01:25 UTCEPSS rescore
  8. 2026-08-14 16:24 UTCOSV refresh
  9. 2026-08-12 13:46 UTCEPSS rescore
  10. 2026-08-11 13:36 UTCEPSS rescore
  11. 2026-08-09 13:42 UTCEPSS rescore
  12. 2026-08-08 16:32 UTCEPSS rescore
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  15. 2026-08-05 19:12 UTCEPSS rescore
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  17. 2026-08-04 10:31 UTCEPSS rescore
  18. 2026-08-01 04:11 UTCEPSS rescore
  19. 2026-07-30 04:54 UTCOSV refresh
  20. 2026-07-30 01:26 UTCEPSS rescore
  21. 2026-07-30 01:26 UTCEPSS rescore
  22. 2026-07-28 15:31 UTCEPSS rescore
  23. 2026-07-26 14:50 UTCEPSS rescore
  24. 2026-07-26 13:54 UTCEG score recompute▲ 4.70
  25. 2026-07-25 14:13 UTCEPSS rescore
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  1. 2026-07-24 14:13 UTCEPSS rescore
  2. 2026-07-23 14:14 UTCEPSS rescore
  3. 2026-07-23 01:18 UTCEG score recompute
  4. 2026-07-23 00:20 UTCEG score recompute
  5. 2026-07-22 21:59 UTCEG score recompute
  6. 2026-07-22 14:04 UTCEPSS rescore
  7. 2026-07-21 15:21 UTCEPSS rescore
  8. 2026-07-21 15:21 UTCEPSS rescore
  9. 2026-07-20 17:03 UTCEPSS rescore
  10. 2026-07-19 14:27 UTCEPSS rescore
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  12. 2026-07-19 02:26 UTCEPSS rescore
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  14. 2026-07-18 10:00 UTCEPSS rescore
  15. 2026-07-16 16:59 UTCEPSS rescore
  16. 2026-07-15 16:54 UTCEPSS rescore
  17. 2026-07-15 16:54 UTCEPSS rescore
  18. 2026-07-15 01:56 UTCEPSS rescore
  19. 2026-07-13 22:26 UTCEPSS rescore
  20. 2026-07-13 22:26 UTCEPSS rescore
  21. 2026-07-12 14:07 UTCOSV refresh
  22. 2026-07-12 05:42 UTCEPSS rescore
  23. 2026-07-11 08:23 UTCEPSS rescore
  24. 2026-07-09 19:05 UTCEPSS rescore
  25. 2026-07-09 19:05 UTCEPSS rescore
  26. 2026-07-08 15:10 UTCEPSS rescore
  27. 2026-07-07 13:42 UTCEPSS rescore
  28. 2026-07-07 13:42 UTCEPSS rescore
  29. 2026-07-06 16:24 UTCEPSS rescore
  30. 2026-07-06 02:20 UTCEPSS rescore
  31. 2026-07-05 02:26 UTCEPSS rescore
  32. 2026-07-04 06:28 UTCEPSS rescore
  33. 2026-07-01 15:02 UTCEPSS rescore
  34. 2026-06-30 23:19 UTCEPSS rescore
  35. 2026-06-30 23:19 UTCEPSS rescore
  36. 2026-06-29 14:03 UTCEPSS rescore
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  38. 2026-06-28 14:04 UTCEPSS rescore
  39. 2026-06-28 04:53 UTCEPSS rescore
  40. 2026-06-27 03:05 UTCEPSS rescore
  41. 2026-06-25 13:47 UTCEPSS rescore
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  43. 2026-06-24 14:02 UTCEPSS rescore
  44. 2026-06-24 14:02 UTCEPSS rescore
  45. 2026-06-23 21:30 UTCEPSS rescore
  46. 2026-06-23 19:30 UTCOSV refresh
  47. 2026-06-22 14:23 UTCEPSS rescore
  48. 2026-06-22 14:23 UTCEPSS rescore
  49. 2026-06-21 14:54 UTCEPSS rescore
  50. 2026-06-21 14:54 UTCEPSS rescore
  51. 2026-06-21 01:57 UTCEPSS rescore
  52. 2026-06-21 01:57 UTCEPSS rescore
  53. 2026-06-19 19:23 UTCEPSS rescore
  54. 2026-06-19 19:23 UTCEPSS rescore
  55. 2026-06-18 17:50 UTCEPSS rescore
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  60. 2026-06-15 17:45 UTCEPSS rescore
  61. 2026-06-14 23:14 UTCEPSS rescore
  62. 2026-06-13 22:57 UTCEPSS rescore
  63. 2026-06-12 23:09 UTCEPSS rescore
  64. 2026-06-12 23:09 UTCEPSS rescore
  65. 2026-06-11 13:57 UTCEPSS rescore
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  67. 2026-06-10 22:15 UTCEPSS rescore
  68. 2026-06-10 13:18 UTCEPSS rescore
  69. 2026-06-08 14:14 UTCEPSS rescore
  70. 2026-06-07 15:22 UTCEPSS rescore
  71. 2026-06-07 03:59 UTCOSV refresh
  72. 2026-06-06 13:45 UTCEPSS rescore
  73. 2026-06-05 22:44 UTCEPSS rescore
  74. 2026-06-05 06:08 UTCEPSS rescore
  75. 2026-06-05 06:08 UTCEPSS rescore

Frequently asked(4)

What is CVE-2015-5283?
CVE-2015-5283 is a medium vulnerability published on October 19, 2015. The sctp_init function in net/sctp/protocol.c in the Linux kernel before 4.2.3 has an incorrect sequence of protocol-initialization steps, which allows local users to cause a denial of service (panic or memory corruption) by creating SCTP sockets before all of the steps have finished.
When was CVE-2015-5283 disclosed?
CVE-2015-5283 was first published in the National Vulnerability Database on October 19, 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-2015-5283 actively exploited?
CVE-2015-5283 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 56.3% of all scored CVEs.
How do I remediate CVE-2015-5283?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-5283, 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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