CVE-2026-64160

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-19. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

netfs: Fix potential for tearing in ->remote_i_size and ->zero_point

Fix potential tearing in using ->remote_i_size and ->zero_point by copying i_size_read() and i_size_write() and using the same seqcount as for i_size.

We need to make sure that netfslib and the filesystems that use it always hold i_lock whilst updating any of the sizes to prevent i_size_seqcount from getting corrupted.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

July 19, 2026

Last Modified

July 20, 2026

Advisory Details (2)

Auto-updated Jul 25, 2026
No patch confirmed yet.
generic

netfs: Fix potential for tearing in ->remote_i_size and ->zero_point - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/55970f238d495517edc961d55c44c772594d0969
generic

netfs: Fix potential for tearing in ->remote_i_size and ->zero_point - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2c8f4742bb76117d735f92a3932d85239b16c494

Vendor Advisories for CVE-2026-64160(2)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-07-26ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-07-26ubuntu

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.

All Vendor Advisories

(2)

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 26× in last 7d / 32× 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.

  1. 2026-07-27 14:14 UTCEPSS rescore
  2. 2026-07-27 10:19 UTCGHSA enrichment
  3. 2026-07-27 06:24 UTCGHSA enrichment
  4. 2026-07-27 02:31 UTCGHSA enrichment
  5. 2026-07-26 22:37 UTCVendor advisory
  6. 2026-07-26 22:37 UTCGHSA enrichment
  7. 2026-07-26 18:42 UTCEG score recompute
  8. 2026-07-26 18:42 UTCGHSA enrichment
  9. 2026-07-26 14:54 UTCEPSS rescore
  10. 2026-07-26 14:54 UTCEPSS rescore
  11. 2026-07-26 14:47 UTCGHSA enrichment
  12. 2026-07-26 10:51 UTCEG score recompute
  13. 2026-07-26 10:51 UTCVendor advisory
  14. 2026-07-26 10:51 UTCGHSA enrichment
  15. 2026-07-25 14:18 UTCEPSS rescore
  16. 2026-07-25 14:18 UTCEPSS rescore
  17. 2026-07-24 14:18 UTCEPSS rescore
  18. 2026-07-24 14:18 UTCEPSS rescore
  19. 2026-07-23 03:22 UTCEG score recompute
  20. 2026-07-22 14:08 UTCEPSS rescore
  21. 2026-07-22 14:08 UTCEPSS rescore
  22. 2026-07-21 15:25 UTCEPSS rescore
  23. 2026-07-21 15:25 UTCEPSS rescore
  24. 2026-07-20 17:16 UTCEG score recompute
  25. 2026-07-20 17:16 UTCGHSA enrichment
Show 7 more
  1. 2026-07-20 17:08 UTCEPSS rescore
  2. 2026-07-20 14:33 UTCEG score recompute▲ 9.80
  3. 2026-07-20 14:33 UTCGHSA enrichment
  4. 2026-07-20 14:32 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  5. 2026-07-19 17:49 UTCNVD update
  6. 2026-07-19 16:07 UTCEG score recompute
  7. 2026-07-19 16:03 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-64160?
CVE-2026-64160 is a critical vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: netfs: Fix potential for tearing in ->remoteisize and ->zero_point Fix potential tearing in using ->remoteisize and ->zero_point by copying isizeread() and isizewrite() and using the same seqcount as for i_size. We need to make…
When was CVE-2026-64160 disclosed?
CVE-2026-64160 was first published in the National Vulnerability Database on July 19, 2026, with the most recent update on July 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64160 actively exploited?
CVE-2026-64160 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 66.7% of all scored CVEs.
What is the CVSS score of CVE-2026-64160?
CVE-2026-64160 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-64160?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64160, 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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