CVE-2024-50241Network attack vector

NFSD service interruption via uninitialized copy state

Published Nov 9, 2024 · Updated Aug 5, 2026

Use of uninitialized resources in Linux NFSD 6.11.3 through 6.11.6 allows remote attackers to interrupt service via NFSv4 COPY. An nfsd4_copy error can call cleanup_async_copy before the copy object's refcount and async_copies fields are initialized, causing at least a refcount underflow. NFSD must be serving NFSv4 COPY requests and the request must reach that error path; the documented consequence is bounded to availability loss.

CVSS severity7.5
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of uninitialized resources in Linux NFSD 6.11.3 through 6.11.6 allows remote attackers to interrupt service via NFSv4 COPY. An nfsd4_copy error can call cleanup_async_copy before the copy object's refcount and async_copies fields are initialized, causing at least a refcount underflow. NFSD must be serving NFSv4 COPY requests and the request must reach that error path; the documented consequence is bounded to availability loss.

The record

CVE
CVE-2024-50241
Published
Nov 9, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-908, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 9, 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=43e46ee5efc03990b223f7aa8b77aa9c3d3acfdf <7267625baf365a969f1b25ded6f07b64bc90ec5b
  2. Affected versionversion=6.10.14 <6.11
  3. Affected versionversion=6.11.3 <6.11.7
  4. Affected versionversion=6a488ad7745b8f64625c6d3a24ce7e448e83f11b <e30a9a2f69c34a00a3cb4fd45c5d231929e66fb1
  5. Affected versionversion=7ea9260874b779637aff6d24c344b8ef4ac862a0 <c3074003fa6837c2b89a34d8d12d9463b59d22d6
  6. Affected versionversion=9e52ff544e0bfa09ee339fd7b0937ee3c080c24e <059434d23c4578d9d02efb92d848ea21bc640112
  7. Affected versionversion=aadc3bbea163b6caaaebfdd2b6c4667fbc726752 <63fab04cbd0f96191b6e5beedc3b643b01c15889
  8. Affected versionversion=ae267989b7b7933dfedcd26468d0a88fc3a9da9e <421f1a2a1afb47d88de09457ef7687e1df7bc997
  9. Affected versionversion=b4e21431a0db4854b5023cd5af001be557e6c3db

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=43e46ee5efc03990b223f7aa8b77aa9c3d3acfdf <7267625baf365a969f1b25ded6f07b64bc90ec5b; version=6.10.14 <6.11; version=6.11.3 <6.11.7; version=6a488ad7745b8f64625c6d3a24ce7e448e83f11b <e30a9a2f69c34a00a3cb4fd45c5d231929e66fb1; version=7ea9260874b779637aff6d24c344b8ef4ac862a0 <c3074003fa6837c2b89a34d8d12d9463b59d22d6; version=9e52ff544e0bfa09ee339fd7b0937ee3c080c24e <059434d23c4578d9d02efb92d848ea21bc640112; version=aadc3bbea163b6caaaebfdd2b6c4667fbc726752 <63fab04cbd0f96191b6e5beedc3b643b01c15889; version=ae267989b7b7933dfedcd26468d0a88fc3a9da9e <421f1a2a1afb47d88de09457ef7687e1df7bc997; version=b4e21431a0db4854b5023cd5af001be557e6c3db

Published CVSS scores

5.5NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.5Linux kernel CNACVSS:3.1/AV:N/AC:L/PR:N/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-908Use of Uninitialized Resource
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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