CVE-2025-37914

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-05-20. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

net_sched: ets: Fix double list add in class with netem as child qdisc

As described in Gerrard's report [1], there are use cases where a netem child qdisc will make the parent qdisc's enqueue callback reentrant. In the case of ets, there won't be a UAF, but the code will add the same classifier to the list twice, which will cause memory corruption.

In addition to checking for qlen being zero, this patch checks whether the class was already added to the active_list (cl_is_active) before doing the addition to cater for the reentrant case.

[1] https://lore.kernel.org/netdev/CAHcdcOm+03OD2j6R0=YHKqmy=VgJ8xEOKuP6c7mSgnp-TEJJbw@mail.gmail.com/

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

May 20, 2025

Last Modified

August 5, 2026

Advisory Details (9)

Auto-updated Jul 30, 2026
Patch available.
generic Patch Available

[SECURITY] [DLA 4327-1] linux security update

https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
generic Patch Available

[SECURITY] [DLA 4271-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
generic

net_sched: ets: Fix double list add in class with netem as child qdisc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bc321f714de693aae06e3786f88df2975376d996
generic

net_sched: ets: Fix double list add in class with netem as child qdisc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9efb6a0fa88e0910d079fdfeb4f7ce4d4ac6c990
generic

net_sched: ets: Fix double list add in class with netem as child qdisc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/72c3da7e6ceb74e74ddbb5a305a35c9fdfcac6e3
generic

net_sched: ets: Fix double list add in class with netem as child qdisc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/554acc5a2ea9703e08023eb9a003f9e5a830a502
generic

net_sched: ets: Fix double list add in class with netem as child qdisc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/24388ba0a1b1b6d4af1b205927ac7f7b119ee4ea
generic

net_sched: ets: Fix double list add in class with netem as child qdisc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1f01e9f961605eb397c6ecd1d7b0233dfbf9077c
generic

net_sched: ets: Fix double list add in class with netem as child qdisc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1a6d0c00fa07972384b0c308c72db091d49988b6

Vendor Advisories for CVE-2025-37914(13)

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

Patch Availability(31)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-nolpae (5.15.0.1083.81) @ jammy2026-05-30ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1094.92) @ jammy2026-05-30ubuntu
ubuntulinux-tools-azure-6.14 (6.14.0-1010.10) @ plucky2026-05-30ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1094.103~20.04.1) @ focal2026-05-30ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1041.42~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-virtual-6.8 (6.8.0-100.100) @ noble2026-05-30ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1047.50~22.04.2) @ jammy2026-05-30ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1041.42) @ noble2026-05-30ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-100.100+fips1) @ noble2026-05-30ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1043.44~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1047.50+fips1) @ noble2026-05-30ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1046.52+fips1) @ noble2026-05-30ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1046.52) @ noble2026-05-30ubuntu
ubuntulinux-tools-ibm-lts-24.04 (6.8.0-1044.44) @ noble2026-05-30ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-100.100~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-tools-gke-64k-6.8 (6.8.0-1043.48) @ noble2026-05-30ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1046.49.1) @ noble2026-05-30ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-100.100.1) @ noble2026-05-30ubuntu
redhatkernel-0:4.18.0-305.179.1.el8_42025-12-04redhat
redhatkernel-0:4.18.0-372.164.1.el8_62025-10-15redhat
redhatkernel-0:5.14.0-70.149.1.el9_02025-10-15redhat
redhatkernel-rt-0:5.14.0-70.149.1.rt21.221.el9_02025-10-15redhat
redhatkernel-0:5.14.0-284.142.1.el9_22025-10-13redhat
redhatkernel-rt-0:5.14.0-284.142.1.rt14.427.el9_22025-10-13redhat
redhatkernel-0:4.18.0-477.114.1.el8_82025-10-08redhat
redhatkernel-0:5.14.0-427.88.1.el9_42025-09-11redhat
redhatkernel-0:5.14.0-570.37.1.el9_62025-08-25redhat
redhatkernel-0:6.12.0-55.29.1.el10_02025-08-25redhat
redhatkernel-0:4.18.0-553.70.1.el8_102025-08-18redhat
redhatkernel-rt-0:4.18.0-553.70.1.rt7.411.el8_102025-08-18redhat
linuxKernel @ 5.10.238—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.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (46 versions)5.10.244-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.137-1~deb11u1 (8 versions)6.1.140-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (40 versions)6.1.140-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.12.29-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.12.29-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(12)

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 5× in last 7d / 26× 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 138 total refreshes for this CVE.

  1. 2026-09-07 16:00 UTCEPSS rescore
  2. 2026-09-07 12:48 UTCOSV refresh
  3. 2026-09-06 13:46 UTCEPSS rescore
  4. 2026-09-04 05:05 UTCEPSS rescore
  5. 2026-09-02 14:11 UTCEPSS rescore
  6. 2026-09-01 13:53 UTCEPSS rescore
  7. 2026-09-01 04:38 UTCEPSS rescore
  8. 2026-08-30 19:16 UTCEPSS rescore
  9. 2026-08-30 01:21 UTCEPSS rescore
  10. 2026-08-28 21:40 UTCEPSS rescore
  11. 2026-08-27 14:24 UTCEPSS rescore
  12. 2026-08-26 14:45 UTCEPSS rescore
  13. 2026-08-25 13:48 UTCEPSS rescore
  14. 2026-08-23 00:18 UTCEPSS rescore
  15. 2026-08-21 23:48 UTCEPSS rescore
  16. 2026-08-20 22:54 UTCEPSS rescore
  17. 2026-08-20 22:01 UTCOSV refresh
  18. 2026-08-19 17:03 UTCEPSS rescore
  19. 2026-08-19 17:03 UTCEPSS rescore
  20. 2026-08-18 13:47 UTCEPSS rescore
  21. 2026-08-17 13:46 UTCEPSS rescore
  22. 2026-08-16 14:55 UTCEPSS rescore
  23. 2026-08-16 02:13 UTCEPSS rescore
  24. 2026-08-15 01:29 UTCEPSS rescore
  25. 2026-08-13 21:59 UTCEPSS rescore
Show 75 more
  1. 2026-08-12 13:50 UTCEPSS rescore
  2. 2026-08-09 13:46 UTCEPSS rescore
  3. 2026-08-08 16:36 UTCEPSS rescore
  4. 2026-08-07 16:26 UTCEPSS rescore
  5. 2026-08-06 13:46 UTCEPSS rescore
  6. 2026-08-05 13:55 UTCEG score recompute
  7. 2026-08-05 13:55 UTCVendor advisory
  8. 2026-08-05 13:55 UTCGHSA enrichment
  9. 2026-08-04 15:09 UTCEPSS rescore
  10. 2026-08-04 10:37 UTCEPSS rescore
  11. 2026-08-03 10:35 UTCEPSS rescore
  12. 2026-08-02 02:26 UTCEPSS rescore
  13. 2026-07-30 16:27 UTCEPSS rescore
  14. 2026-07-30 07:10 UTCEG score recompute
  15. 2026-07-30 07:10 UTCVendor advisory
  16. 2026-07-30 07:10 UTCGHSA enrichment
  17. 2026-07-30 01:29 UTCEPSS rescore
  18. 2026-07-28 15:35 UTCEPSS rescore
  19. 2026-07-26 14:54 UTCEPSS rescore
  20. 2026-07-25 14:17 UTCEPSS rescore
  21. 2026-07-25 14:17 UTCEPSS rescore
  22. 2026-07-24 14:17 UTCEPSS rescore
  23. 2026-07-24 05:41 UTCOSV refresh
  24. 2026-07-23 02:54 UTCEG score recompute
  25. 2026-07-22 14:07 UTCEPSS rescore
  26. 2026-07-22 14:07 UTCEPSS rescore
  27. 2026-07-21 15:24 UTCEPSS rescore
  28. 2026-07-20 17:07 UTCEPSS rescore
  29. 2026-07-19 14:30 UTCEPSS rescore
  30. 2026-07-19 14:30 UTCEPSS rescore
  31. 2026-07-19 02:28 UTCEPSS rescore
  32. 2026-07-19 02:28 UTCEPSS rescore
  33. 2026-07-18 10:04 UTCEPSS rescore
  34. 2026-07-18 10:04 UTCEPSS rescore
  35. 2026-07-16 17:02 UTCEPSS rescore
  36. 2026-07-15 16:57 UTCEPSS rescore
  37. 2026-07-15 16:57 UTCEPSS rescore
  38. 2026-07-15 01:59 UTCEPSS rescore
  39. 2026-07-15 01:59 UTCEPSS rescore
  40. 2026-07-13 22:29 UTCEPSS rescore
  41. 2026-07-13 22:29 UTCEPSS rescore
  42. 2026-07-13 06:12 UTCEPSS rescore
  43. 2026-07-12 05:46 UTCEPSS rescore
  44. 2026-07-11 08:27 UTCEPSS rescore
  45. 2026-07-11 08:27 UTCEPSS rescore
  46. 2026-07-09 19:09 UTCEPSS rescore
  47. 2026-07-09 19:09 UTCEPSS rescore
  48. 2026-07-07 13:45 UTCEPSS rescore
  49. 2026-07-07 00:51 UTCOSV refresh
  50. 2026-07-06 16:27 UTCEPSS rescore
  51. 2026-07-06 16:27 UTCEPSS rescore
  52. 2026-07-06 02:23 UTCEPSS rescore
  53. 2026-07-05 02:30 UTCEPSS rescore
  54. 2026-07-04 06:30 UTCEPSS rescore
  55. 2026-07-01 15:06 UTCEPSS rescore
  56. 2026-07-01 15:06 UTCEPSS rescore
  57. 2026-06-30 23:22 UTCEPSS rescore
  58. 2026-06-30 23:22 UTCEPSS rescore
  59. 2026-06-29 14:06 UTCEPSS rescore
  60. 2026-06-29 14:06 UTCEPSS rescore
  61. 2026-06-28 14:07 UTCEPSS rescore
  62. 2026-06-28 14:07 UTCEPSS rescore
  63. 2026-06-28 04:55 UTCEPSS rescore
  64. 2026-06-28 04:55 UTCEPSS rescore
  65. 2026-06-27 03:08 UTCEPSS rescore
  66. 2026-06-27 03:08 UTCEPSS rescore
  67. 2026-06-25 13:49 UTCEPSS rescore
  68. 2026-06-25 13:49 UTCEPSS rescore
  69. 2026-06-24 14:04 UTCEPSS rescore
  70. 2026-06-24 14:04 UTCEPSS rescore
  71. 2026-06-23 21:32 UTCEPSS rescore
  72. 2026-06-23 21:32 UTCEPSS rescore
  73. 2026-06-22 14:25 UTCEPSS rescore
  74. 2026-06-22 14:25 UTCEPSS rescore
  75. 2026-06-21 14:56 UTCEPSS rescore

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-37914?
CVE-2025-37914 is a high vulnerability published on May 20, 2025. In the Linux kernel, the following vulnerability has been resolved: net_sched: ets: Fix double list add in class with netem as child qdisc As described in Gerrard's report [1], there are use cases where a netem child qdisc will make the parent qdisc's enqueue callback reentrant. In the case of ets,…
When was CVE-2025-37914 disclosed?
CVE-2025-37914 was first published in the National Vulnerability Database on May 20, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-37914 actively exploited?
CVE-2025-37914 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 88.2% of all scored CVEs.
What is the CVSS score of CVE-2025-37914?
CVE-2025-37914 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2025-37914?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-37914, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-37914

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