CVE-2022-3643

MEDIUMNVD 6.510.0▲
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2022-12-07. NVD baseline CVSS 6.5; sources differ by 3.5.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

A fix is available — apply it.

Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior.

CVSS v3
6.5
EG Score
10.0(medium)
EPSS
37.1%
KEV
Not listed

Published

December 7, 2022

Last Modified

November 21, 2024

References (10)

Patch Availability(20)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-modules-4.4.0-1153-aws (4.4.0-1153.168) @ xenial2026-05-25ubuntu
ubuntulinux-image-lowlatency (4.4.0.236.242) @ xenial2026-05-25ubuntu
ubuntulinux-tools-5.19.0-29-generic-64k (5.19.0-29.30) @ kinetic2026-05-25ubuntu
ubuntulinux-image-azure (4.15.0.1159.126) @ trusty2026-05-25ubuntu
ubuntulinux-image-ibm-edge (5.4.0.1042.53) @ bionic2026-05-25ubuntu
ubuntulinux-headers-raspi (5.19.0.1012.11) @ kinetic2026-05-25ubuntu
ubuntulinux-modules-extra-5.15.0-1027-gke (5.15.0-1027.32) @ jammy2026-05-25ubuntu
ubuntulinux-oracle-headers-4.15.0-1113 (4.15.0-1113.124~16.04.1) @ xenial2026-05-25ubuntu
ubuntulinux-tools-4.15.0-1143-gcp (4.15.0-1143.159) @ bionic2026-05-25ubuntu
ubuntulinux-buildinfo-5.4.0-1079-raspi (5.4.0-1079.90~18.04.1) @ bionic2026-05-25ubuntu
ubuntulinux-lowlatency-cloud-tools-5.19.0-1015 (5.19.0-1015.16) @ kinetic2026-05-25ubuntu
ubuntulinux-image-5.15.0-1031-azure-fde (5.15.0-1031.38.1) @ jammy2026-05-25ubuntu
ubuntulinux-buildinfo-5.4.0-1101-azure (5.4.0-1101.107) @ focal2026-05-25ubuntu
ubuntulinux-modules-extra-5.15.0-1027-gke (5.15.0-1027.32~20.04.1) @ focal2026-05-25ubuntu
ubuntulinux-image-unsigned-5.4.0-1094-gke (5.4.0-1094.101) @ focal2026-05-25ubuntu
ubuntulinux-dell300x-headers-4.15.0-1060 (4.15.0-1060.65) @ bionic2026-05-25ubuntu
ubuntulinux-signed-image-azure (4.15.0.1159.144) @ xenial2026-05-25ubuntu
ubuntulinux-headers-generic-hwe-22.04 (5.19.0.32.33~22.04.9) @ jammy2026-05-25ubuntu
ubuntulowlatency-4.4 (4.4.0-168) @ xenial2026-05-25ubuntu
ubuntulinux-headers-bluefield (5.4.0.1058.53) @ focal2026-05-25ubuntu

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.

Weakness Classification(1)

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

All Vendor Advisories

(20)

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 10× in last 7d / 47× 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.

  1. 2026-07-12 05:44 UTCEPSS rescore
  2. 2026-07-12 05:44 UTCEPSS rescore
  3. 2026-07-11 08:25 UTCEPSS rescore
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  11. 2026-07-05 02:28 UTCEPSS rescore
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  14. 2026-07-01 15:04 UTCEPSS rescore
  15. 2026-06-30 23:20 UTCEPSS rescore
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  17. 2026-06-29 14:04 UTCEPSS rescore
  18. 2026-06-28 14:06 UTCEPSS rescore
  19. 2026-06-28 12:19 UTCOSV refresh
  20. 2026-06-28 04:54 UTCEPSS rescore
  21. 2026-06-28 04:54 UTCEPSS rescore
  22. 2026-06-27 03:07 UTCEPSS rescore
  23. 2026-06-27 03:07 UTCEPSS rescore
  24. 2026-06-25 13:48 UTCEPSS rescore
  25. 2026-06-25 13:48 UTCEPSS rescore
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  1. 2026-06-24 14:03 UTCEPSS rescore
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  3. 2026-06-23 21:31 UTCEPSS rescore
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  5. 2026-06-22 14:24 UTCEPSS rescore
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  7. 2026-06-21 14:55 UTCEPSS rescore
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  9. 2026-06-21 01:58 UTCEPSS rescore
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  11. 2026-06-19 19:24 UTCEPSS rescore
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  13. 2026-06-18 17:51 UTCEPSS rescore
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  17. 2026-06-16 17:51 UTCEPSS rescore
  18. 2026-06-15 17:46 UTCEPSS rescore
  19. 2026-06-14 23:15 UTCEPSS rescore
  20. 2026-06-13 22:58 UTCEPSS rescore
  21. 2026-06-12 23:10 UTCEPSS rescore
  22. 2026-06-12 23:10 UTCEPSS rescore
  23. 2026-06-11 13:58 UTCEPSS rescore
  24. 2026-06-11 13:58 UTCEPSS rescore
  25. 2026-06-10 22:44 UTCOSV refresh
  26. 2026-06-10 22:17 UTCEPSS rescore
  27. 2026-06-10 13:20 UTCEPSS rescore
  28. 2026-06-08 14:15 UTCEPSS rescore
  29. 2026-06-08 14:15 UTCEPSS rescore
  30. 2026-06-07 15:23 UTCEPSS rescore
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  32. 2026-06-06 13:46 UTCEPSS rescore
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  35. 2026-06-05 22:46 UTCEPSS rescore
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  37. 2026-06-05 06:09 UTCEPSS rescore
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  39. 2026-06-04 13:11 UTCEPSS rescore
  40. 2026-06-04 13:11 UTCEPSS rescore
  41. 2026-06-02 20:11 UTCEPSS rescore
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  43. 2026-06-01 13:50 UTCEPSS rescore
  44. 2026-06-01 13:50 UTCEPSS rescore
  45. 2026-05-31 22:29 UTCEPSS rescore
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  47. 2026-05-31 22:29 UTCEPSS rescore
  48. 2026-05-31 00:15 UTCEPSS rescore
  49. 2026-05-31 00:15 UTCEPSS rescore
  50. 2026-05-29 13:43 UTCEPSS rescore
  51. 2026-05-29 13:43 UTCEPSS rescore
  52. 2026-05-28 13:43 UTCEPSS rescore
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  54. 2026-05-27 13:39 UTCEPSS rescore
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  56. 2026-05-26 13:43 UTCEPSS rescore
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  58. 2026-05-26 07:17 UTCEPSS rescore
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  60. 2026-05-26 07:17 UTCEPSS rescore
  61. 2026-05-25 11:08 UTCEG score recompute
  62. 2026-05-25 11:08 UTCVendor advisory
  63. 2026-05-25 11:07 UTCGHSA enrichment
  64. 2026-05-24 16:51 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-3643?
CVE-2022-3643 is a medium vulnerability published on December 7, 2022. Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet…
When was CVE-2022-3643 disclosed?
CVE-2022-3643 was first published in the National Vulnerability Database on December 7, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-3643 actively exploited?
CVE-2022-3643 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-3643?
CVE-2022-3643 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 10.0.
How do I remediate CVE-2022-3643?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-3643, 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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