CVE-2022-4378

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2023-01-05. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their privileges on the system.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
35.0%
KEV
Not listed

Published

January 5, 2023

Last Modified

April 10, 2025

References (10)

Vendor Advisories for CVE-2022-4378(1)

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

Patch Availability(22)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oem-22.04b (6.0.0.1010.10) @ jammy2026-05-25ubuntu
ubuntulinux-tools-5.19.0-29-generic-64k (5.19.0-29.30) @ kinetic2026-05-25ubuntu
redhatredhat-virtualization-host-0:4.5.3-202306050942_8.62023-06-06redhat
redhatkpatch-patch2023-06-05redhat
redhatkernel-0:4.18.0-372.57.1.el8_62023-05-31redhat
redhatkernel-0:2.6.32-754.50.1.el62023-04-18redhat
redhatkernel-0:3.10.0-957.100.1.el72023-04-11redhat
redhatkernel-0:3.10.0-693.107.1.el72023-04-11redhat
redhatkernel-rt-0:4.18.0-425.19.2.rt7.230.el8_72023-04-04redhat
redhatkernel-0:4.18.0-425.19.2.el8_72023-04-04redhat
redhatkernel-0:4.18.0-305.82.1.el8_42023-03-14redhat
redhatkernel-rt-0:4.18.0-305.82.1.rt7.154.el8_42023-03-14redhat
redhatkernel-rt-0:5.14.0-70.49.1.rt21.120.el9_02023-03-14redhat
redhatkernel-0:5.14.0-70.49.1.el9_02023-03-14redhat
redhatkernel-0:3.10.0-1160.88.1.el72023-03-07redhat
redhatkernel-rt-0:4.18.0-193.100.1.rt13.151.el8_22023-03-07redhat
redhatkernel-0:4.18.0-193.100.1.el8_22023-03-07redhat
redhatkernel-rt-0:3.10.0-1160.88.1.rt56.1233.el72023-03-07redhat
redhatkernel-0:5.14.0-162.18.1.el9_12023-02-28redhat
redhatkernel-rt-0:5.14.0-162.18.1.rt21.181.el9_12023-02-28redhat
redhatkernel-0:3.10.0-1062.71.1.el72023-02-28redhat
redhatkernel-0:4.18.0-147.80.1.el8_12023-02-21redhat

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(3)

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

Additional Vendor Advisories

(24)

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 13× in last 7d / 46× 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 102 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-4378?
CVE-2022-4378 is a high vulnerability published on January 5, 2023. A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their privileges on the system.
When was CVE-2022-4378 disclosed?
CVE-2022-4378 was first published in the National Vulnerability Database on January 5, 2023, with the most recent update on April 10, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-4378 actively exploited?
CVE-2022-4378 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-4378?
CVE-2022-4378 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-4378?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-4378, 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.

Dependency Blast Radius

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