CVE-2026-46154

HIGHPre-NVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. the CNA's CVSS baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.0Exploit: None knownExposed: 0

A fix is available — apply it.

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

sched_ext: Read scx_root under scx_cgroup_ops_rwsem in cgroup setters

scx_group_set_{weight,idle,bandwidth}() cache scx_root before acquiring scx_cgroup_ops_rwsem, so the pointer can be stale by the time the op runs. If the loaded scheduler is disabled and freed (via RCU work) and another is enabled between the naked load and the rwsem acquire, the reader sees scx_cgroup_enabled=true (the new scheduler's) but dereferences the freed one

  • UAF on SCX_HAS_OP(sch, ...) / SCX_CALL_OP(sch, ...).

scx_cgroup_enabled is toggled only under scx_cgroup_ops_rwsem write (scx_cgroup_{init,exit}), so reading scx_root inside the rwsem read section correlates @sch with the enabled snapshot.

CVSS v3
7.0
EG Score
7.0(medium)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity70% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

May 28, 2026

Last Modified

August 5, 2026

Advisory Details (3)

Auto-updated Jun 11, 2026
No patch confirmed yet.
generic

sched_ext: Read scx_root under scx_cgroup_ops_rwsem in cgroup setters - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ce9aaa3af445c391735c9d000c4db60dfd5640d4
generic

sched_ext: Read scx_root under scx_cgroup_ops_rwsem in cgroup setters - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/80afd4c84bc8f5e80145ce35279f5ce53f6043db
generic

sched_ext: Read scx_root under scx_cgroup_ops_rwsem in cgroup setters - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0f54f6355575971673d8aac7da107ec4178e45bd

Vendor Advisories for CVE-2026-46154(1)

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

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-25ubuntu

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.

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.7-1~bpo13+1 (133 versions)7.0.7-1—

Weakness Classification(1)

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

All Vendor Advisories

(8)

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 4× in last 7d / 86× 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 250 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-46154?
CVE-2026-46154 is a high vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: schedext: Read scxroot under scxcgroupops_rwsem in cgroup setters scxgroupset{weight,idle,bandwidth}() cache scxroot before acquiring scxcgroupops_rwsem, so the pointer can be stale by the time the op runs. If the loaded scheduler…
When was CVE-2026-46154 disclosed?
CVE-2026-46154 was first published in the National Vulnerability Database on May 28, 2026, 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-2026-46154 actively exploited?
CVE-2026-46154 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 98.0% of all scored CVEs.
What is the CVSS score of CVE-2026-46154?
CVE-2026-46154 has a CVSS v4.0 base score of 7.0 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-46154?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46154, 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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