CVE-2026-46078

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-05-27. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

A fix is available — apply it.

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

erofs: fix the out-of-bounds nameoff handling for trailing dirents

Currently we already have boundary-checks for nameoffs, but the trailing dirents are special since the namelens are calculated with strnlen() with unchecked nameoffs.

If a crafted EROFS has a trailing dirent with nameoff >= maxsize, maxsize - nameoff can underflow, causing strnlen() to read past the directory block.

nameoff0 should also be verified to be a multiple of sizeof(struct erofs_dirent) as well [1].

[1] https://sashiko.dev/#/patchset/20260416063511.3173774-1-hsiangkao%40linux.alibaba.com

CVSS v3
7.1
EG Score
7.1(medium)
EPSS
3.1%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 24, 2026

Advisory Details (6)

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

erofs: fix the out-of-bounds nameoff handling for trailing dirents - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d18a3b5d337fa412a38e776e6b4b857a58836575
generic

erofs: fix the out-of-bounds nameoff handling for trailing dirents - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8ebb951a284b7446e025afc7dc5e9516ef9a7214
generic

erofs: fix the out-of-bounds nameoff handling for trailing dirents - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/80a23c6d1aba35be8746d74ac14e6ba5ae46da21
generic

erofs: fix the out-of-bounds nameoff handling for trailing dirents - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/48b27a955d22391c7f30169fa7b6b2e1977f1ce4
generic

erofs: fix the out-of-bounds nameoff handling for trailing dirents - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/222055e6b4063abd2d9e13c3d49bbd1724c50789
generic

erofs: fix the out-of-bounds nameoff handling for trailing dirents - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1d55445226c75ddd4e78b09b3e7d99109b28c366

Vendor Advisories for CVE-2026-46078(2)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-07-11ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-07-11ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-07-11ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-07-11ubuntu

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 9× in last 7d / 79× 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 186 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-46078?
CVE-2026-46078 is a high vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: erofs: fix the out-of-bounds nameoff handling for trailing dirents Currently we already have boundary-checks for nameoffs, but the trailing dirents are special since the namelens are calculated with strnlen() with unchecked…
When was CVE-2026-46078 disclosed?
CVE-2026-46078 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46078 actively exploited?
CVE-2026-46078 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46078?
CVE-2026-46078 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-46078?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46078, 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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