CVE-2026-64157

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-07-19. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 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:

netfs: Fix partial invalidation of streaming-write folio

In netfs_invalidate_folio(), if the region of a partial invalidation overlaps the front (but not all) of a dirty write cached in a streaming write page (dirty, but not uptodate, with the dirty region tracked by a netfs_folio struct), the function modifies the dirty region - but incorrectly as it moves the region forward by setting the start to the start, not the end, of the invalidation region.

Fix this by setting finfo->dirty_offset to the end of the invalidation region (iend).

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

July 19, 2026

Last Modified

August 17, 2026

Advisory Details (4)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

netfs: Fix partial invalidation of streaming-write folio - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f6b2569ae29b666fd15ff2848684c445ba442a39
generic

netfs: Fix partial invalidation of streaming-write folio - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6d91acc7fb85d33ea58fca9b964a32a453937f4b
generic

netfs: Fix partial invalidation of streaming-write folio - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6a3d27116be2c5fb9a03d5cf37c486ac517f3689
generic

netfs: Fix partial invalidation of streaming-write folio - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3d9601c029b934b5b6a10f99791467b10eb6b211

Vendor Advisories for CVE-2026-64157(1)

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

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-30ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-30ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-30ubuntu

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 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (138 versions)7.0.12-1—

All Vendor Advisories

(5)

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 22× in last 7d / 71× 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 101 total refreshes for this CVE.

  1. 2026-08-30 02:45 UTCEG score recompute
  2. 2026-08-30 02:45 UTCVendor advisory
  3. 2026-08-30 02:45 UTCGHSA enrichment
  4. 2026-08-30 01:22 UTCEPSS rescore
  5. 2026-08-28 21:42 UTCEPSS rescore
  6. 2026-08-27 21:34 UTCEG score recompute
  7. 2026-08-27 21:34 UTCVendor advisory
  8. 2026-08-27 21:34 UTCGHSA enrichment
  9. 2026-08-26 22:13 UTCEG score recompute
  10. 2026-08-26 22:13 UTCVendor advisory
  11. 2026-08-26 22:13 UTCGHSA enrichment
  12. 2026-08-26 14:46 UTCEPSS rescore
  13. 2026-08-25 19:02 UTCEG score recompute
  14. 2026-08-25 19:02 UTCVendor advisory
  15. 2026-08-25 19:02 UTCGHSA enrichment
  16. 2026-08-25 13:49 UTCEPSS rescore
  17. 2026-08-24 19:41 UTCEG score recompute
  18. 2026-08-24 19:41 UTCVendor advisory
  19. 2026-08-24 19:40 UTCGHSA enrichment
  20. 2026-08-23 20:19 UTCEG score recompute
  21. 2026-08-23 20:19 UTCVendor advisory
  22. 2026-08-23 20:19 UTCGHSA enrichment
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-22 20:58 UTCEG score recompute
  25. 2026-08-22 20:58 UTCVendor advisory
Show 75 more
  1. 2026-08-22 20:58 UTCGHSA enrichment
  2. 2026-08-21 23:49 UTCEPSS rescore
  3. 2026-08-21 21:37 UTCEG score recompute
  4. 2026-08-21 21:37 UTCVendor advisory
  5. 2026-08-21 21:37 UTCGHSA enrichment
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-20 22:16 UTCVendor advisory
  8. 2026-08-20 22:16 UTCGHSA enrichment
  9. 2026-08-19 22:55 UTCEG score recompute
  10. 2026-08-19 22:55 UTCVendor advisory
  11. 2026-08-19 22:55 UTCGHSA enrichment
  12. 2026-08-19 17:04 UTCEPSS rescore
  13. 2026-08-18 19:40 UTCEG score recompute
  14. 2026-08-18 19:40 UTCVendor advisory
  15. 2026-08-18 19:40 UTCGHSA enrichment
  16. 2026-08-18 13:48 UTCEPSS rescore
  17. 2026-08-17 15:28 UTCEG score recompute▲ 5.50
  18. 2026-08-17 15:28 UTCVendor advisory
  19. 2026-08-17 15:28 UTCGHSA enrichment
  20. 2026-08-17 15:28 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  21. 2026-08-17 13:47 UTCEPSS rescore
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-15 01:30 UTCEPSS rescore
  24. 2026-08-14 23:26 UTCVendor advisory
  25. 2026-08-14 23:26 UTCGHSA enrichment
  26. 2026-08-13 22:00 UTCEPSS rescore
  27. 2026-08-12 13:51 UTCEPSS rescore
  28. 2026-08-11 21:49 UTCVendor advisory
  29. 2026-08-11 21:49 UTCGHSA enrichment
  30. 2026-08-11 00:00 UTCEPSS rescore
  31. 2026-08-09 13:47 UTCEPSS rescore
  32. 2026-08-08 20:12 UTCVendor advisory
  33. 2026-08-08 20:12 UTCGHSA enrichment
  34. 2026-08-08 16:37 UTCEPSS rescore
  35. 2026-08-06 13:47 UTCEPSS rescore
  36. 2026-08-05 19:17 UTCEPSS rescore
  37. 2026-08-05 19:17 UTCEPSS rescore
  38. 2026-08-05 18:34 UTCVendor advisory
  39. 2026-08-05 18:34 UTCGHSA enrichment
  40. 2026-08-04 15:10 UTCEPSS rescore
  41. 2026-08-04 10:39 UTCEPSS rescore
  42. 2026-08-03 10:36 UTCEPSS rescore
  43. 2026-08-02 16:57 UTCVendor advisory
  44. 2026-08-02 16:57 UTCGHSA enrichment
  45. 2026-08-02 02:27 UTCEPSS rescore
  46. 2026-08-01 04:16 UTCEPSS rescore
  47. 2026-07-30 15:20 UTCEG score recompute
  48. 2026-07-30 15:19 UTCGHSA enrichment
  49. 2026-07-30 01:30 UTCEPSS rescore
  50. 2026-07-30 01:30 UTCEPSS rescore
  51. 2026-07-29 12:29 UTCVendor advisory
  52. 2026-07-29 12:29 UTCGHSA enrichment
  53. 2026-07-28 15:37 UTCEPSS rescore
  54. 2026-07-27 14:14 UTCEPSS rescore
  55. 2026-07-26 14:54 UTCEPSS rescore
  56. 2026-07-26 14:54 UTCEPSS rescore
  57. 2026-07-26 10:52 UTCEG score recompute
  58. 2026-07-26 10:52 UTCVendor advisory
  59. 2026-07-26 10:52 UTCGHSA enrichment
  60. 2026-07-25 14:18 UTCEPSS rescore
  61. 2026-07-25 14:18 UTCEPSS rescore
  62. 2026-07-24 14:18 UTCEPSS rescore
  63. 2026-07-24 14:18 UTCEPSS rescore
  64. 2026-07-23 14:18 UTCEPSS rescore
  65. 2026-07-23 14:18 UTCEPSS rescore
  66. 2026-07-23 03:22 UTCEG score recompute
  67. 2026-07-22 14:08 UTCEPSS rescore
  68. 2026-07-22 14:08 UTCEPSS rescore
  69. 2026-07-21 15:25 UTCEPSS rescore
  70. 2026-07-21 15:25 UTCEPSS rescore
  71. 2026-07-20 17:18 UTCEG score recompute
  72. 2026-07-20 17:18 UTCGHSA enrichment
  73. 2026-07-20 17:08 UTCEPSS rescore
  74. 2026-07-19 17:49 UTCNVD update
  75. 2026-07-19 16:07 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-64157?
CVE-2026-64157 is a medium vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: netfs: Fix partial invalidation of streaming-write folio In netfsinvalidatefolio(), if the region of a partial invalidation overlaps the front (but not all) of a dirty write cached in a streaming write page (dirty, but not…
When was CVE-2026-64157 disclosed?
CVE-2026-64157 was first published in the National Vulnerability Database on July 19, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64157 actively exploited?
CVE-2026-64157 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 97.8% of all scored CVEs.
What is the CVSS score of CVE-2026-64157?
CVE-2026-64157 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-64157?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64157, 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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