CVE-2024-27390

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2024-05-01. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
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%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down()

As discussed in the past (commit 2d3916f31891 ("ipv6: fix skb drops in igmp6_event_query() and igmp6_event_report()")) I think the synchronize_net() call in ipv6_mc_down() is not needed.

Under load, synchronize_net() can last between 200 usec and 5 ms.

KASAN seems to agree as well.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

May 1, 2024

Last Modified

July 24, 2026

Advisory Details (7)

Auto-updated Jul 24, 2026
No patch confirmed yet.
generic

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5da9a218340a2bc804dc4327e5804392e24a0b88
generic

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/26d4bac55750d535f1f0b8790dc26daf6089e373
generic

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/17ef8efc00b34918b966388b2af0993811895a8c
generic

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bfd2f3c58ad86ad33db80515e6c3503e0414e44b
generic

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a03ede2282ebbd181bd6f5c38cbfcb5765afcd04
generic

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9d159d6637ccce25f879d662a480541ef4ba3a50
generic

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7eb06ee5921189812e6b4bfe7b0f1e878be16df7

Vendor Advisories for CVE-2024-27390(1)

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

Patch Availability(16)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-intel-iotg-edge (5.15.0.1058.64~20.04.1) @ focal2026-07-26ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1066.64) @ jammy2026-07-26ubuntu
ubuntulinux-tools-aws-edge (5.15.0.1063.69~20.04.1) @ focal2026-07-26ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1061.57) @ jammy2026-07-26ubuntu
ubuntulinux-tools-nvidia-lowlatency (5.15.0.1058.58) @ jammy2026-07-26ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1057.60~20.04.1) @ focal2026-07-26ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.113.123~20.04.1) @ focal2026-07-26ubuntu
ubuntulinux-tools-gke (6.8.0-1004.7) @ noble2026-07-26ubuntu
ubuntulinux-tools-kvm (5.15.0.1060.56) @ jammy2026-07-26ubuntu
ubuntulinux-tools-oem-24.04a (6.8.0-1006.6+1) @ noble2026-07-26ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.8.0-35.35) @ noble2026-07-26ubuntu
ubuntulinux-tools-oracle-64k (6.8.0-1006.6) @ noble2026-07-26ubuntu
ubuntulinux-tools-gcp (6.8.0-1008.9) @ noble2026-07-26ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1058.56) @ jammy2026-07-26ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1030.34) @ jammy2026-07-26ubuntu
linuxKernel @ 5.15.153—osv

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.

All Vendor Advisories

(15)

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 8× in last 7d / 44× 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 130 total refreshes for this CVE.

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

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2024-27390?
CVE-2024-27390 is a medium vulnerability published on May 1, 2024. In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: remove one synchronizenet() barrier in ipv6mc_down() As discussed in the past (commit 2d3916f31891 ("ipv6: fix skb drops in igmp6eventquery() and igmp6eventreport()")) I think the synchronizenet() call in ipv6mc_down()…
When was CVE-2024-27390 disclosed?
CVE-2024-27390 was first published in the National Vulnerability Database on May 1, 2024, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-27390 actively exploited?
CVE-2024-27390 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 87.1% of all scored CVEs.
What is the CVSS score of CVE-2024-27390?
CVE-2024-27390 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2024-27390?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-27390, 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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