CVE-2024-0639

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.2% (6th percentile of EPSS-scored CVEs). GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in net/sctp/socket.c in the Linux kernel’s SCTP subsystem. This flaw allows guests with local user privileges to trigger a deadlock and potentially crash the system.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
6th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

January 17, 2024

Last Modified

July 21, 2026

Advisory Details (4)

Auto-updated Jul 21, 2026
Patch available. Sources: redhat, github_commit.
github_commit

commit 6feb37b3b06e (torvalds/linux)

Fix landed in torvalds/linux commit 6feb37b3b06e — awaiting tagged release

https://github.com/torvalds/linux/commit/6feb37b3b06e9049e20dcf7e23998f92c9c5be9a
redhat

2258754 – (CVE-2024-0639) CVE-2024-0639 kernel: potential deadlock on &net->sctp.addr_wq_lock leading to DOS

https://bugzilla.redhat.com/show_bug.cgi?id=2258754
redhatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2024-0639
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2023:6583

Vendor Advisories for CVE-2024-0639(3)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-azure (4.15.0.1176.191~14.04.1) @ trusty2026-05-24ubuntu

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 rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (33 versions)
  • every version up to 5.10.191-1: fixed in 5.10.191-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.27-1 ... 6.1.38-4~bpo11+1 (8 versions)
  • every version up to 6.1.52-1: fixed in 6.1.52-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.4.4-1: fixed in 6.4.4-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.4.4-1: fixed in 6.4.4-1
—

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 30× 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 172 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-08 17:06 UTCEPSS rescore
  3. 2026-10-07 23:46 UTCEPSS rescore
  4. 2026-10-06 15:15 UTCEPSS rescore
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  8. 2026-10-01 19:48 UTCEPSS rescore
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  10. 2026-09-30 16:40 UTCEG score recompute
  11. 2026-09-30 15:01 UTCEPSS rescore
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  16. 2026-09-24 14:01 UTCEPSS rescore
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  18. 2026-09-23 13:46 UTCEPSS rescore
  19. 2026-09-22 10:45 UTCOSV refresh
  20. 2026-09-20 20:14 UTCEPSS rescore
  21. 2026-09-20 20:14 UTCEPSS rescore
  22. 2026-09-18 19:26 UTCEPSS rescore
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  24. 2026-09-16 05:11 UTCEPSS rescore
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  1. 2026-09-15 03:08 UTCEPSS rescore
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  3. 2026-09-12 14:58 UTCEPSS rescore
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  5. 2026-09-11 09:34 UTCEPSS rescore
  6. 2026-09-08 21:58 UTCEPSS rescore
  7. 2026-09-07 15:59 UTCEPSS rescore
  8. 2026-09-06 13:46 UTCEPSS rescore
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  10. 2026-09-04 13:58 UTCEPSS rescore
  11. 2026-09-04 05:04 UTCEPSS rescore
  12. 2026-09-03 07:59 UTCOSV refresh
  13. 2026-09-02 14:10 UTCEPSS rescore
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  21. 2026-08-23 00:17 UTCEPSS rescore
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  23. 2026-08-21 23:47 UTCEPSS rescore
  24. 2026-08-20 22:53 UTCEPSS rescore
  25. 2026-08-19 17:02 UTCEPSS rescore
  26. 2026-08-16 21:26 UTCOSV refresh
  27. 2026-08-16 14:54 UTCEPSS rescore
  28. 2026-08-16 02:12 UTCEPSS rescore
  29. 2026-08-15 01:28 UTCEPSS rescore
  30. 2026-08-13 21:58 UTCEPSS rescore
  31. 2026-08-12 13:49 UTCEPSS rescore
  32. 2026-08-11 13:40 UTCEPSS rescore
  33. 2026-08-10 23:58 UTCEPSS rescore
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  35. 2026-08-08 16:35 UTCEPSS rescore
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  37. 2026-08-06 13:45 UTCEPSS rescore
  38. 2026-08-05 19:15 UTCEPSS rescore
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  40. 2026-08-04 10:36 UTCEPSS rescore
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  42. 2026-08-02 02:25 UTCEPSS rescore
  43. 2026-08-02 02:25 UTCEPSS rescore
  44. 2026-08-01 15:06 UTCOSV refresh
  45. 2026-08-01 04:14 UTCEPSS rescore
  46. 2026-07-30 16:26 UTCEPSS rescore
  47. 2026-07-30 01:29 UTCEPSS rescore
  48. 2026-07-28 15:34 UTCEPSS rescore
  49. 2026-07-28 15:34 UTCEPSS rescore
  50. 2026-07-26 14:53 UTCEPSS rescore
  51. 2026-07-25 14:16 UTCEPSS rescore
  52. 2026-07-24 14:16 UTCEPSS rescore
  53. 2026-07-23 14:16 UTCEPSS rescore
  54. 2026-07-23 02:31 UTCEG score recompute
  55. 2026-07-22 23:17 UTCEG score recompute▲ 0.80
  56. 2026-07-22 14:07 UTCEPSS rescore
  57. 2026-07-22 14:07 UTCEPSS rescore
  58. 2026-07-21 15:23 UTCEPSS rescore
  59. 2026-07-20 17:06 UTCEPSS rescore
  60. 2026-07-19 14:30 UTCEPSS rescore
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  64. 2026-07-18 10:03 UTCEPSS rescore
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  66. 2026-07-16 17:01 UTCEPSS rescore
  67. 2026-07-15 16:56 UTCEPSS rescore
  68. 2026-07-14 22:25 UTCOSV refresh
  69. 2026-07-13 22:28 UTCEPSS rescore
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  71. 2026-07-13 06:11 UTCEPSS rescore
  72. 2026-07-12 05:45 UTCEPSS rescore
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  74. 2026-07-11 08:26 UTCEPSS rescore
  75. 2026-07-09 19:08 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2024-0639?
CVE-2024-0639 is a medium vulnerability published on January 17, 2024. A denial of service vulnerability due to a deadlock was found in sctpautoasconf_init in net/sctp/socket.c in the Linux kernel’s SCTP subsystem. This flaw allows guests with local user privileges to trigger a deadlock and potentially crash the system.
When was CVE-2024-0639 disclosed?
CVE-2024-0639 was first published on January 17, 2024, 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-2024-0639 actively exploited?
CVE-2024-0639 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-0639?
CVE-2024-0639 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2024-0639?
A fix for CVE-2024-0639 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-0639 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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