CVE-2022-2588

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 5.9%, top 8% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 6%CVSS: 5.3Exploit: NoneExposed: 0

A fix is available — apply it.

It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
—
EPSS
92.4%
KEV
Not listed

Published

January 8, 2024

Last Modified

November 21, 2024

References (30)

Vendor Advisories for CVE-2022-2588(1)

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

Patch Availability(24)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-lowlatency (4.4.0.231.237) @ xenial2026-05-24ubuntu
ubuntulowlatency-4.4 (4.4.0-168) @ xenial2026-05-24ubuntu
ubuntulinux-tools-azure-fde (5.4.0.1089.94+cvm1.29) @ focal2026-05-24ubuntu
ubuntulinux-lowlatency (3.13.0.191.201) @ trusty2026-05-24ubuntu
ubuntulinux-tools-5.15.0-1013-intel-iotg (5.15.0-1013.17) @ jammy2026-05-24ubuntu
ubuntulinux-image-4.15.0-191-generic-lpae (4.15.0-191.202) @ bionic2026-05-24ubuntu
ubuntulinux-modules-extra-5.15.0-1016-gcp (5.15.0-1016.21) @ jammy2026-05-24ubuntu
ubuntulinux-tools-aws-hwe (4.15.0.1139.126) @ xenial2026-05-24ubuntu
ubuntulinux-image-lowlatency (5.4.0.124.125) @ focal2026-05-24ubuntu
ubuntulinux-image-lowlatency (5.15.0.46.43) @ jammy2026-05-24ubuntu
redhatkpatch-patch2023-07-11redhat
redhatkernel-0:3.10.0-1062.76.1.el72023-07-11redhat
redhatkernel-rt-0:3.10.0-1160.80.1.rt56.1225.el72022-11-02redhat
redhatkernel-0:3.10.0-1160.80.1.el72022-11-02redhat
redhatkernel-0:4.18.0-193.93.1.el8_22022-11-01redhat
redhatkernel-rt-0:4.18.0-193.93.1.rt13.143.el8_22022-11-01redhat
redhatkernel-0:4.18.0-372.32.1.el8_62022-10-25redhat
redhatkernel-rt-0:4.18.0-372.32.1.rt7.189.el8_62022-10-25redhat
redhatkernel-0:3.10.0-693.106.1.el72022-10-25redhat
redhatkernel-0:3.10.0-957.99.1.el72022-10-25redhat
redhatkernel-0:4.18.0-305.65.1.el8_42022-10-18redhat
redhatkernel-rt-0:4.18.0-305.65.1.rt7.137.el8_42022-10-18redhat
redhatkernel-0:4.18.0-147.76.1.el8_12022-10-11redhat
redhatredhat-virtualization-host-0:4.5.2-202209140405_8.62022-09-19redhat

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.

Weakness Classification(2)

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 12× in last 7d / 48× 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. 2026-07-22 22:56 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
  3. 2026-07-22 14:06 UTCEPSS rescore
  4. 2026-07-21 15:22 UTCEPSS rescore
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  6. 2026-07-20 17:05 UTCEPSS rescore
  7. 2026-07-19 14:29 UTCEPSS rescore
  8. 2026-07-19 02:27 UTCEPSS rescore
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  10. 2026-07-18 10:03 UTCEPSS rescore
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  12. 2026-07-16 17:00 UTCEPSS rescore
  13. 2026-07-15 16:56 UTCEPSS rescore
  14. 2026-07-15 16:56 UTCEPSS rescore
  15. 2026-07-15 01:58 UTCEPSS rescore
  16. 2026-07-15 01:58 UTCEPSS rescore
  17. 2026-07-14 23:25 UTCOSV refresh
  18. 2026-07-13 22:27 UTCEPSS rescore
  19. 2026-07-13 06:11 UTCEPSS rescore
  20. 2026-07-13 06:11 UTCEPSS rescore
  21. 2026-07-12 05:44 UTCEPSS rescore
  22. 2026-07-12 05:44 UTCEPSS rescore
  23. 2026-07-11 08:25 UTCEPSS rescore
  24. 2026-07-11 08:25 UTCEPSS rescore
  25. 2026-07-09 19:07 UTCEPSS rescore
Show 73 more
  1. 2026-07-08 15:12 UTCEPSS rescore
  2. 2026-07-07 13:44 UTCEPSS rescore
  3. 2026-07-06 16:25 UTCEPSS rescore
  4. 2026-07-06 16:25 UTCEPSS rescore
  5. 2026-07-06 02:21 UTCEPSS rescore
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  7. 2026-07-05 02:28 UTCEPSS rescore
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  9. 2026-07-04 06:29 UTCEPSS rescore
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  11. 2026-07-01 15:04 UTCEPSS rescore
  12. 2026-06-30 23:20 UTCEPSS rescore
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  14. 2026-06-28 14:06 UTCEPSS rescore
  15. 2026-06-28 04:54 UTCEPSS rescore
  16. 2026-06-27 03:07 UTCEPSS rescore
  17. 2026-06-27 00:09 UTCOSV refresh
  18. 2026-06-25 13:48 UTCEPSS rescore
  19. 2026-06-25 13:48 UTCEPSS rescore
  20. 2026-06-24 14:03 UTCEPSS rescore
  21. 2026-06-24 14:03 UTCEPSS rescore
  22. 2026-06-23 21:31 UTCEPSS rescore
  23. 2026-06-23 21:31 UTCEPSS rescore
  24. 2026-06-22 14:24 UTCEPSS rescore
  25. 2026-06-22 14:24 UTCEPSS rescore
  26. 2026-06-21 14:55 UTCEPSS rescore
  27. 2026-06-21 14:55 UTCEPSS rescore
  28. 2026-06-21 01:58 UTCEPSS rescore
  29. 2026-06-21 01:58 UTCEPSS rescore
  30. 2026-06-19 19:24 UTCEPSS rescore
  31. 2026-06-19 19:24 UTCEPSS rescore
  32. 2026-06-18 17:51 UTCEPSS rescore
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  34. 2026-06-17 17:51 UTCEPSS rescore
  35. 2026-06-17 17:51 UTCEPSS rescore
  36. 2026-06-16 17:51 UTCEPSS rescore
  37. 2026-06-16 17:51 UTCEPSS rescore
  38. 2026-06-15 17:46 UTCEPSS rescore
  39. 2026-06-14 23:15 UTCEPSS rescore
  40. 2026-06-12 23:10 UTCEPSS rescore
  41. 2026-06-12 23:10 UTCEPSS rescore
  42. 2026-06-11 13:58 UTCEPSS rescore
  43. 2026-06-11 13:58 UTCEPSS rescore
  44. 2026-06-10 22:16 UTCEPSS rescore
  45. 2026-06-09 10:40 UTCOSV refresh
  46. 2026-06-08 14:15 UTCEPSS rescore
  47. 2026-06-08 14:15 UTCEPSS rescore
  48. 2026-06-06 13:46 UTCEPSS rescore
  49. 2026-06-06 13:46 UTCEPSS rescore
  50. 2026-06-05 22:45 UTCEPSS rescore
  51. 2026-06-05 22:45 UTCEPSS rescore
  52. 2026-06-05 06:09 UTCEPSS rescore
  53. 2026-06-05 06:09 UTCEPSS rescore
  54. 2026-06-04 13:11 UTCEPSS rescore
  55. 2026-06-04 13:11 UTCEPSS rescore
  56. 2026-06-02 20:11 UTCEPSS rescore
  57. 2026-06-02 20:11 UTCEPSS rescore
  58. 2026-06-02 20:11 UTCEPSS rescore
  59. 2026-06-01 13:50 UTCEPSS rescore
  60. 2026-06-01 13:50 UTCEPSS rescore
  61. 2026-05-31 22:29 UTCEPSS rescore
  62. 2026-05-31 22:29 UTCEPSS rescore
  63. 2026-05-31 22:29 UTCEPSS rescore
  64. 2026-05-31 00:15 UTCEPSS rescore
  65. 2026-05-31 00:15 UTCEPSS rescore
  66. 2026-05-29 13:43 UTCEPSS rescore
  67. 2026-05-29 13:42 UTCEPSS rescore
  68. 2026-05-28 13:43 UTCEPSS rescore
  69. 2026-05-28 13:43 UTCEPSS rescore
  70. 2026-05-28 13:43 UTCEPSS rescore
  71. 2026-05-24 16:51 UTCEPSS rescore
  72. 2026-05-24 10:52 UTCEG score recompute
  73. 2026-05-24 10:52 UTCVendor advisory

Publicly available exploits

(6 references)

Working exploit code is in the public domain (6 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCveritas501/CVE-2022-2588
    First seen Mar 2, 2023

    CVE-2022-2588

    Open source ↗
  • GitHub PoCBassamGraini/CVE-2022-2588
    First seen Dec 4, 2022
    Open source ↗
  • GitHub PoCnopgadget/CVE-2022-2588
    First seen Sep 18, 2022

    A PoC for CVE-2022-2588 that triggers a WARNING

    Open source ↗
  • GitHub PoCkonoha279/2022-LPE-UAF
    First seen Aug 24, 2022

    CVE-2022-2588,CVE-2022-2586,CVE-2022-2585

    Open source ↗
  • GitHub PoCpirenga/2022-LPE-UAF
    First seen Aug 23, 2022

    CVE-2022-2588,CVE-2022-2586,CVE-2022-2585

    Open source ↗
  • GitHub PoCMarkakd/CVE-2022-2588
    First seen Aug 11, 2022

    exploit for CVE-2022-2588

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-2588?
CVE-2022-2588 is a medium vulnerability published on January 8, 2024. It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.
When was CVE-2022-2588 disclosed?
CVE-2022-2588 was first published in the National Vulnerability Database on January 8, 2024, 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-2022-2588 actively exploited?
CVE-2022-2588 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-2588?
CVE-2022-2588 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2022-2588?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-2588, 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

Explore the affected products and dependency analysis for CVE-2022-2588

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