CVE-2024-39916Network attack vector

File access via unchecked NFS subtree validation

Published Jul 12, 2024 · Updated Aug 2, 2024

NFS access-control failure in FOG Project before 1.5.10.30 allows remote attackers to read or modify server files through crafted NFS handles. The installer writes nested /images exports with no_subtree_check, causing the NFS server to validate only the filesystem rather than the exported directory. A malicious NFS client can substitute inode and generation values in a directory handle; access runs as fogproject and is limited to files that account can reach.

CVSS severity6.4
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NFS access-control failure in FOG Project before 1.5.10.30 allows remote attackers to read or modify server files through crafted NFS handles. The installer writes nested /images exports with no_subtree_check, causing the NFS server to validate only the filesystem rather than the exported directory. A malicious NFS client can substitute inode and generation values in a directory handle; access runs as fogproject and is limited to files that account can reach.

The record

CVE
CVE-2024-39916
Published
Jul 12, 2024
Updated
Aug 2, 2024
Vendor
FOG Project
Product
FOG Project
Classifications
CWE-453, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=< 1.5.10.30

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FOG Project · FOG Projectversion=< 1.5.10.30

Published CVSS scores

6.4GitHub CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

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-453Insecure Default Variable Initialization
T1565.001Stored Data Manipulation

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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