CVE-2009-3726: n/a vulnerability

CVE-2009-3726: The nfs4_proc_lock function in fs/nfs/nfs4proc.c in the NFSv4 client in the Linux kernel before 2.6.31-rc4...

The nfs4_proc_lock function in fs/nfs/nfs4proc.c in the NFSv4 client in the Linux kernel before 2.6.31-rc4 allows remote NFS servers to cause a denial of service (NULL pointer dereference and panic) by sending a certain response containing incorrect file attributes, which trigger attempted use of an open file that lacks NFSv4 state.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 06:38 UTC (UTC+00:00)

Security readout for executives and security teams

This issue can let a remote NFSv4 server crash a vulnerable Linux client. The business impact is availability, not confirmed data theft. Systems most relevant are legacy Linux machines that mount NFSv4 shares from servers they do not fully trust or cannot control. Exposure is limited to Linux systems using the NFSv4 client on vulnerable kernel or vendor package versions. The remote party is the NFS server being mounted, so risk is highest with untrusted, compromised, or poorly controlled NFS servers. Treat as a targeted availability risk for legacy Linux clients using NFSv4. Prioritize remediation where business-critical systems depend on NFS mounts or connect to storage outside direct administrative control. Mitigation focus: Apply vendor kernel updates referenced by affected distribution advisories.; Upgrade kernels to a version containing the upstream fix at or after 2.6.31-rc4.; Avoid mounting NFSv4 shares from untrusted or unmanaged servers..

Prepared: Jun 28, 2026, 18:15 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 9, 2009, 19:00 UTC (UTC+00:00)

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

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.redhat.com/show_bug.cgi?id=529227CVE reference · x_refsource_CONFIRM
oval:org.mitre.oval:def:9734CVE reference · vdb-entry, signature
oval:org.mitre.oval:def:6636CVE reference · vdb-entry, signature

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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