CVE-2026-46174

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache

Make sure resources are not improperly shared in the op cache and cause instruction corruption this way.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
3.3%
KEV
Not listed

Published

May 28, 2026

Last Modified

July 14, 2026

Advisory Details (8)

Auto-updated Jun 3, 2026
No patch confirmed yet.
generic

x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ff6fc65b3bf73acc5ee71919154d830ad5431362
generic

x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f5bc3aef7df46eaaf423d7413ab8833f704ae576
generic

x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c21b90f77687075115d989e53a8ec5e2bb427ab1
generic

x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9109489cc8c34e50d15575a3d1ff82af586bc1aa
generic

x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/28f5ed477eef166d678d6966762cbc1de9b4f436
generic

x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/251497955f2314cd39d43191e81c6151dead4c7b
generic

x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1e23b30a80b14e5764657401ee2cca030525ae8e
generic

x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1cd85a19748b2407830376a5cbae5c0f126016e5

Vendor Advisories for CVE-2026-46174(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 75× 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 174 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-46174?
CVE-2026-46174 is a high vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache Make sure resources are not improperly shared in the op cache and cause instruction corruption this way.
When was CVE-2026-46174 disclosed?
CVE-2026-46174 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46174 actively exploited?
CVE-2026-46174 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46174?
CVE-2026-46174 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-46174?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46174, 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.

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