CVE-2026-46007

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 5 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

hwmon: (powerz) Avoid cacheline sharing for DMA buffer

Depending on the architecture the transfer buffer may share a cacheline with the following mutex. As the buffer may be used for DMA, that is problematic.

Use the high-level DMA helpers to make sure that cacheline sharing can not happen.

Also drop the comment, as the helpers are documentation enough.

https://sashiko.dev/#/message/20260408175814.934BFC19421%40smtp.kernel.org

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 16, 2026

Advisory Details (4)

Auto-updated Jun 16, 2026
No patch confirmed yet.
generic

hwmon: (powerz) Avoid cacheline sharing for DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3023c050af3600bf451153335dea5e073c9a3088
generic

hwmon: (powerz) Avoid cacheline sharing for DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2fa2273016a0483217404cfe330967c4ac6832a9
generic

hwmon: (powerz) Avoid cacheline sharing for DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/270e5c576a6e30f6b337fa91d35b44c241297533
generic

hwmon: (powerz) Avoid cacheline sharing for DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1869da3efe703b016b23d4885f3fe6c1751959c6

Vendor Advisories for CVE-2026-46007(1)

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

Patch Availability(21)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-14ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-09-14ubuntu
linuxKernel @ 6.12.88—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

(2 across 2 ecosystems)
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 ... 7.0.4-1~bpo13+1 (134 versions)7.0.4-1—

All Vendor Advisories

(20)

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 10× in last 7d / 39× 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 208 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-46007?
CVE-2026-46007 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: hwmon: (powerz) Avoid cacheline sharing for DMA buffer Depending on the architecture the transfer buffer may share a cacheline with the following mutex. As the buffer may be used for DMA, that is problematic. Use the high-level DMA…
When was CVE-2026-46007 disclosed?
CVE-2026-46007 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46007 actively exploited?
CVE-2026-46007 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 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-46007?
CVE-2026-46007 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-46007?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46007, 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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