CVE-2023-54092

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2025-12-24. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

KVM: s390: pv: fix index value of replaced ASCE

The index field of the struct page corresponding to a guest ASCE should be 0. When replacing the ASCE in s390_replace_asce(), the index of the new ASCE should also be set to 0.

Having the wrong index might lead to the wrong addresses being passed around when notifying pte invalidations, and eventually to validity intercepts (VM crash) if the prefix gets unmapped and the notifier gets called with the wrong address.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

December 24, 2025

Last Modified

August 5, 2026

Advisory Details (5)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

KVM: s390: pv: fix index value of replaced ASCE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c2fceb59bbda16468bda82b002383bff59de89ab
generic

KVM: s390: pv: fix index value of replaced ASCE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f1c7a776338f2ac5e34da40e58fe9f33ea390a5e
generic

KVM: s390: pv: fix index value of replaced ASCE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/017f686bcb536ff23d49c143fdf9d1fd89a9a924
generic

KVM: s390: pv: fix index value of replaced ASCE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/49a2686adddebe1ae76b4d368383208656ef6606
generic

KVM: s390: pv: fix index value of replaced ASCE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8e635da0e0d3cb45e32fa79b36218fb98281bc10

Vendor Advisories for CVE-2023-54092(2)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:5.14.0-362.8.1.el9_32023-11-07redhat
linuxKernel @ 5.10.190—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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (33 versions)5.10.191-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.27-1 ... 6.1.38-4~bpo11+1 (8 versions)6.1.52-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.4.11-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.4.11-1—

Data Freshness Timeline

(refreshed 8× in last 7d / 30× 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 189 total refreshes for this CVE.

  1. 2026-09-18 19:26 UTCEPSS rescore
  2. 2026-09-16 14:06 UTCEPSS rescore
  3. 2026-09-16 05:11 UTCEPSS rescore
  4. 2026-09-16 05:11 UTCEPSS rescore
  5. 2026-09-15 03:08 UTCEPSS rescore
  6. 2026-09-14 05:49 UTCOSV refresh
  7. 2026-09-13 16:45 UTCEPSS rescore
  8. 2026-09-12 14:58 UTCEPSS rescore
  9. 2026-09-11 14:51 UTCEPSS rescore
  10. 2026-09-11 09:34 UTCEPSS rescore
  11. 2026-09-08 21:58 UTCEPSS rescore
  12. 2026-09-07 15:59 UTCEPSS rescore
  13. 2026-09-06 13:46 UTCEPSS rescore
  14. 2026-09-05 15:26 UTCEPSS rescore
  15. 2026-09-04 13:58 UTCEPSS rescore
  16. 2026-09-04 05:04 UTCEPSS rescore
  17. 2026-09-02 14:10 UTCEPSS rescore
  18. 2026-09-01 13:52 UTCEPSS rescore
  19. 2026-09-01 04:36 UTCEPSS rescore
  20. 2026-08-30 19:15 UTCEPSS rescore
  21. 2026-08-30 01:20 UTCEPSS rescore
  22. 2026-08-28 21:39 UTCEPSS rescore
  23. 2026-08-27 14:23 UTCEPSS rescore
  24. 2026-08-26 14:44 UTCEPSS rescore
  25. 2026-08-26 06:43 UTCOSV refresh
Show 75 more
  1. 2026-08-25 13:47 UTCEPSS rescore
  2. 2026-08-23 00:17 UTCEPSS rescore
  3. 2026-08-23 00:17 UTCEPSS rescore
  4. 2026-08-21 23:47 UTCEPSS rescore
  5. 2026-08-20 22:53 UTCEPSS rescore
  6. 2026-08-19 17:02 UTCEPSS rescore
  7. 2026-08-18 13:46 UTCEPSS rescore
  8. 2026-08-16 14:54 UTCEPSS rescore
  9. 2026-08-16 02:12 UTCEPSS rescore
  10. 2026-08-15 01:28 UTCEPSS rescore
  11. 2026-08-13 21:58 UTCEPSS rescore
  12. 2026-08-12 13:49 UTCEPSS rescore
  13. 2026-08-11 13:40 UTCEPSS rescore
  14. 2026-08-10 23:58 UTCEPSS rescore
  15. 2026-08-09 22:47 UTCEG score recompute
  16. 2026-08-09 22:47 UTCGHSA enrichment
  17. 2026-08-09 13:44 UTCEPSS rescore
  18. 2026-08-08 16:35 UTCEPSS rescore
  19. 2026-08-08 05:27 UTCEG score recompute
  20. 2026-08-08 05:27 UTCGHSA enrichment
  21. 2026-08-07 16:25 UTCEPSS rescore
  22. 2026-08-06 13:45 UTCEPSS rescore
  23. 2026-08-06 07:10 UTCEG score recompute
  24. 2026-08-06 07:10 UTCGHSA enrichment
  25. 2026-08-05 19:15 UTCEPSS rescore
  26. 2026-08-05 19:15 UTCEPSS rescore
  27. 2026-08-05 10:15 UTCEG score recompute
  28. 2026-08-05 10:15 UTCGHSA enrichment
  29. 2026-08-04 10:49 UTCEG score recompute
  30. 2026-08-04 10:48 UTCGHSA enrichment
  31. 2026-08-04 10:36 UTCEPSS rescore
  32. 2026-08-04 09:24 UTCEG score recompute▲ 8.80
  33. 2026-08-04 09:23 UTCGHSA enrichment
  34. 2026-08-04 09:20 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  35. 2026-08-03 10:34 UTCEPSS rescore
  36. 2026-08-02 02:25 UTCEPSS rescore
  37. 2026-08-02 02:25 UTCEPSS rescore
  38. 2026-08-01 04:14 UTCEPSS rescore
  39. 2026-07-30 01:29 UTCEPSS rescore
  40. 2026-07-28 15:34 UTCEPSS rescore
  41. 2026-07-28 15:34 UTCEPSS rescore
  42. 2026-07-27 03:39 UTCOSV refresh
  43. 2026-07-26 14:53 UTCEPSS rescore
  44. 2026-07-25 14:16 UTCEPSS rescore
  45. 2026-07-24 14:16 UTCEPSS rescore
  46. 2026-07-23 14:16 UTCEPSS rescore
  47. 2026-07-23 02:30 UTCEG score recompute
  48. 2026-07-22 23:16 UTCEG score recompute
  49. 2026-07-22 14:07 UTCEPSS rescore
  50. 2026-07-22 14:07 UTCEPSS rescore
  51. 2026-07-21 15:23 UTCEPSS rescore
  52. 2026-07-20 17:06 UTCEPSS rescore
  53. 2026-07-19 14:30 UTCEPSS rescore
  54. 2026-07-19 14:29 UTCEPSS rescore
  55. 2026-07-19 02:27 UTCEPSS rescore
  56. 2026-07-19 02:27 UTCEPSS rescore
  57. 2026-07-18 10:03 UTCEPSS rescore
  58. 2026-07-18 10:03 UTCEPSS rescore
  59. 2026-07-16 17:01 UTCEPSS rescore
  60. 2026-07-15 16:56 UTCEPSS rescore
  61. 2026-07-15 01:59 UTCEPSS rescore
  62. 2026-07-15 01:59 UTCEPSS rescore
  63. 2026-07-13 22:28 UTCEPSS rescore
  64. 2026-07-13 22:28 UTCEPSS rescore
  65. 2026-07-13 06:11 UTCEPSS rescore
  66. 2026-07-12 05:45 UTCEPSS rescore
  67. 2026-07-12 05:45 UTCEPSS rescore
  68. 2026-07-11 08:26 UTCEPSS rescore
  69. 2026-07-09 22:17 UTCOSV refresh
  70. 2026-07-09 19:08 UTCEPSS rescore
  71. 2026-07-08 15:13 UTCEPSS rescore
  72. 2026-07-07 13:45 UTCEPSS rescore
  73. 2026-07-07 13:44 UTCEPSS rescore
  74. 2026-07-06 16:26 UTCEPSS rescore
  75. 2026-07-06 16:26 UTCEPSS rescore

Frequently asked(5)

What is CVE-2023-54092?
CVE-2023-54092 is a high vulnerability published on December 24, 2025. In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pv: fix index value of replaced ASCE The index field of the struct page corresponding to a guest ASCE should be 0. When replacing the ASCE in s390replaceasce(), the index of the new ASCE should also be set to 0. Having…
When was CVE-2023-54092 disclosed?
CVE-2023-54092 was first published in the National Vulnerability Database on December 24, 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-2023-54092 actively exploited?
CVE-2023-54092 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 89.3% of all scored CVEs.
What is the CVSS score of CVE-2023-54092?
CVE-2023-54092 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2023-54092?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-54092, 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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