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CVE Record

CVE-2025-68764: NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags

In the Linux kernel, the following vulnerability has been resolved: NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags When a filesystem is being automounted, it needs to preserve the user-set superblock mount options, such as the "ro" flag.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue affects NFS automount behavior. Automounted filesystems may fail to carry forward user-set mount protections such as read-only, noexec, nodev, or sync, weakening assumptions administrators made about NFS access controls.

Executive priority

Treat as a targeted Linux hardening issue, not an emergency based on current evidence. Prioritize environments that depend on NFS mount flags for containment, compliance, or operational safety.

Technical view

The resolved kernel flaw is in NFS automount handling. During automount, superblock mount options set by the user should be preserved. The source says flags including ro, noexec, nodev, and sync were not properly inherited.

Likely exposure

Exposure is most likely on Linux systems using NFS automounts where administrators rely on ro, noexec, nodev, or sync flags. The bundle does not provide affected distribution package names or a CVSS score.

Exploitation context

The source bundle does not identify active exploitation, public exploit use, or KEV listing. Impact depends on whether NFS automounts are present and whether missed mount flags undermine a local security boundary or operational policy.

Researcher notes

The available record is sparse: no CVSS, CWE, exploit status, or detailed impact narrative. Analysis should stay anchored to NFS automount flag inheritance and the referenced Linux stable commits.

Mitigation direction

  • Update to a vendor kernel containing the referenced stable fixes.
  • Check Linux distribution and appliance vendor advisories for fixed package versions.
  • Review Siemens advisory if using Siemens-managed Linux-based products.
  • Audit NFS automount usage where ro, noexec, nodev, or sync are required.
  • Prioritize systems where NFS access crosses trust boundaries.

Validation and detection

  • Inventory Linux hosts using NFS automounts.
  • Map kernel versions against vendor fixed releases or referenced stable commits.
  • Confirm automounted NFS filesystems retain intended mount flags.
  • Review configuration management for required NFS mount options.
  • Document any systems awaiting vendor kernel fixes.
Prepared
Confidence
medium
Sources
11

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

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CVE-2025-68764 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
2ADP providers
10Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
siemens-SADPADP container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxf2aedb713c284429987dc66c7aaf38decfc8da2a, f2aedb713c284429987dc66c7aaf38decfc8da2a, f2aedb713c284429987dc66c7aaf38decfc8da2a, f2aedb713c284429987dc66c7aaf38decfc8da2a, f2aedb713c284429987dc66c7aaf38decfc8da2a, f2aedb713c284429987dc66c7aaf38decfc8da2a, f2aedb713c284429987dc66c7aaf38decfc8da2a, f2aedb713c284429987dc66c7aaf38decfc8da2aunaffected
LinuxLinux5.6, 0, 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.63, 6.17.13, 6.18.2, 6.19affected
Weakness

CWE details

No CWE listed

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