CVE-2024-46697Network attack vector

Remote kernel crash via uninitialized context free

Published Sep 13, 2024 · Updated Aug 5, 2026

Improper initialization in Linux kernel 6.7 through 6.10.7 allows remote attackers to crash NFS servers via crafted NFSv4 requests. In nfsd4_encode_fattr4, an early error path can bypass context initialization and then free an indeterminate stack pointer during cleanup. The NFS server must be enabled and reachable, and a client-supplied COMPOUND operation can drive the path without local access or user interaction.

CVSS severity9.8
Critical
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper initialization in Linux kernel 6.7 through 6.10.7 allows remote attackers to crash NFS servers via crafted NFSv4 requests. In nfsd4_encode_fattr4, an early error path can bypass context initialization and then free an indeterminate stack pointer during cleanup. The NFS server must be enabled and reachable, and a client-supplied COMPOUND operation can drive the path without local access or user interaction.

The record

CVE
CVE-2024-46697
Published
Sep 13, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-665, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.7
  2. Affected versionversion=f59388a579c6a395de8f7372b267d3abecd8d6bf <dd65b324174a64558a16ebbf4c3266e5701185d0
  3. Affected versionversion=f59388a579c6a395de8f7372b267d3abecd8d6bf <f58bab6fd4063913bd8321e99874b8239e9ba726

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=f59388a579c6a395de8f7372b267d3abecd8d6bf <dd65b324174a64558a16ebbf4c3266e5701185d0; version=f59388a579c6a395de8f7372b267d3abecd8d6bf <f58bab6fd4063913bd8321e99874b8239e9ba726

Published CVSS scores

9.8Linux Kernel OrganizationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-665Improper Initialization
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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