CVE-2026-46174

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. 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:

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)
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
3%
KEV
Not listed

Published

May 28, 2026

Last Modified

August 5, 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.

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.8.0-136.136.2~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-25ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-25ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1107.113~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-25ubuntu

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

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (53 versions)5.10.257-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.172-1~deb11u1 (19 versions)6.1.174-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (52 versions)6.1.174-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.88-1~bpo12+1 (21 versions)6.12.88-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.7-1~bpo13+1 (133 versions)7.0.7-1—

All Vendor Advisories

(25)

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 5× in last 7d / 89× 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 267 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 19:17 UTCEPSS rescore
  5. 2026-08-30 01:22 UTCEPSS rescore
  6. 2026-08-28 21:41 UTCEPSS rescore
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-26 14:46 UTCEPSS rescore
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-25 04:53 UTCEG score recompute
  11. 2026-08-25 04:53 UTCVendor advisory
  12. 2026-08-25 04:52 UTCGHSA enrichment
  13. 2026-08-23 14:42 UTCEG score recompute
  14. 2026-08-23 14:42 UTCVendor advisory
  15. 2026-08-23 14:41 UTCGHSA enrichment
  16. 2026-08-21 23:49 UTCEPSS rescore
  17. 2026-08-21 15:34 UTCEG score recompute
  18. 2026-08-21 15:34 UTCVendor advisory
  19. 2026-08-21 15:33 UTCGHSA enrichment
  20. 2026-08-20 22:55 UTCEPSS rescore
  21. 2026-08-20 22:31 UTCVendor advisory
  22. 2026-08-20 22:31 UTCGHSA enrichment
  23. 2026-08-20 10:57 UTCEG score recompute
  24. 2026-08-20 10:57 UTCVendor advisory
  25. 2026-08-20 10:56 UTCGHSA enrichment
Show 75 more
  1. 2026-08-19 17:04 UTCEPSS rescore
  2. 2026-08-18 13:48 UTCEPSS rescore
  3. 2026-08-17 13:47 UTCEPSS rescore
  4. 2026-08-17 08:55 UTCVendor advisory
  5. 2026-08-17 08:55 UTCGHSA enrichment
  6. 2026-08-16 15:11 UTCEG score recompute
  7. 2026-08-16 15:11 UTCVendor advisory
  8. 2026-08-16 15:11 UTCGHSA enrichment
  9. 2026-08-16 14:56 UTCEPSS rescore
  10. 2026-08-16 02:36 UTCEG score recompute
  11. 2026-08-16 02:36 UTCVendor advisory
  12. 2026-08-16 02:36 UTCGHSA enrichment
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 01:30 UTCEPSS rescore
  15. 2026-08-14 23:14 UTCVendor advisory
  16. 2026-08-14 23:14 UTCGHSA enrichment
  17. 2026-08-14 12:12 UTCVendor advisory
  18. 2026-08-14 12:12 UTCGHSA enrichment
  19. 2026-08-14 01:11 UTCEG score recompute
  20. 2026-08-14 01:11 UTCVendor advisory
  21. 2026-08-14 01:11 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 08:02 UTCVendor advisory
  24. 2026-08-13 08:02 UTCGHSA enrichment
  25. 2026-08-12 20:31 UTCEG score recompute
  26. 2026-08-12 20:31 UTCVendor advisory
  27. 2026-08-12 20:31 UTCGHSA enrichment
  28. 2026-08-12 13:51 UTCEPSS rescore
  29. 2026-08-12 09:30 UTCVendor advisory
  30. 2026-08-12 09:30 UTCGHSA enrichment
  31. 2026-08-11 22:24 UTCEG score recompute
  32. 2026-08-11 22:24 UTCVendor advisory
  33. 2026-08-11 22:24 UTCGHSA enrichment
  34. 2026-08-11 11:18 UTCVendor advisory
  35. 2026-08-11 11:18 UTCGHSA enrichment
  36. 2026-08-11 00:07 UTCEG score recompute
  37. 2026-08-11 00:07 UTCVendor advisory
  38. 2026-08-11 00:07 UTCGHSA enrichment
  39. 2026-08-11 00:00 UTCEPSS rescore
  40. 2026-08-10 05:21 UTCVendor advisory
  41. 2026-08-10 05:21 UTCGHSA enrichment
  42. 2026-08-09 18:19 UTCEG score recompute
  43. 2026-08-09 18:19 UTCVendor advisory
  44. 2026-08-09 18:19 UTCGHSA enrichment
  45. 2026-08-09 13:46 UTCEPSS rescore
  46. 2026-08-09 07:18 UTCVendor advisory
  47. 2026-08-09 07:18 UTCGHSA enrichment
  48. 2026-08-08 20:17 UTCEG score recompute
  49. 2026-08-08 20:17 UTCVendor advisory
  50. 2026-08-08 20:17 UTCGHSA enrichment
  51. 2026-08-08 16:37 UTCEPSS rescore
  52. 2026-08-08 09:15 UTCVendor advisory
  53. 2026-08-08 09:15 UTCGHSA enrichment
  54. 2026-08-07 22:14 UTCEG score recompute
  55. 2026-08-07 22:14 UTCVendor advisory
  56. 2026-08-07 22:14 UTCGHSA enrichment
  57. 2026-08-07 11:12 UTCVendor advisory
  58. 2026-08-07 11:12 UTCGHSA enrichment
  59. 2026-08-07 00:07 UTCEG score recompute
  60. 2026-08-07 00:07 UTCVendor advisory
  61. 2026-08-07 00:07 UTCGHSA enrichment
  62. 2026-08-06 13:47 UTCEPSS rescore
  63. 2026-08-06 11:45 UTCVendor advisory
  64. 2026-08-06 11:45 UTCGHSA enrichment
  65. 2026-08-06 00:42 UTCEG score recompute
  66. 2026-08-06 00:42 UTCVendor advisory
  67. 2026-08-06 00:42 UTCGHSA enrichment
  68. 2026-08-05 19:17 UTCEPSS rescore
  69. 2026-08-05 13:41 UTCEG score recompute
  70. 2026-08-05 13:41 UTCVendor advisory
  71. 2026-08-05 13:41 UTCGHSA enrichment
  72. 2026-08-04 23:59 UTCEG score recompute
  73. 2026-08-04 23:59 UTCVendor advisory
  74. 2026-08-04 23:59 UTCGHSA enrichment
  75. 2026-08-04 15:10 UTCEPSS rescore

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 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-2026-46174 actively exploited?
CVE-2026-46174 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 96.7% of all scored CVEs.
What is the CVSS score of CVE-2026-46174?
CVE-2026-46174 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
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.

Dependency Blast Radius

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