How severe is CVE-2007-0004?

CVE-2007-0004 has a CVSS 2.0 base score of 1.9, rated low severity.

Is CVE-2007-0004 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-0004?

CVE-2007-0004 affects Redhat Enterprise Linux. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-0004?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-0004 published?

CVE-2007-0004 was published on 2007-09-18 and last updated on 2026-06-16.

CVE-2007-0004

CVE-2007-0004 is a low-severity vulnerability in Redhat Enterprise Linux with a CVSS 2.0 base score of 1.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Low (CVSS 2.0 base score 1.9)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Redhat Enterprise Linux
Published: 2007-09-18
Last modified: 2026-06-16

Description

The NFS client implementation in the kernel in Red Hat Enterprise Linux (RHEL) 3, when a filesystem is mounted with the noacl option, checks permissions for the open system call via vfs_permission (mode bits) data rather than an NFS ACCESS call to the server, which allows local client processes to obtain a false success status from open calls that the server would deny, and possibly obtain sensitive information about file permissions on the server, as demonstrated in a root_squash environment. NOTE: it is uncertain whether any scenarios involving this issue cross privilege boundaries.

Frequently asked questions

What is CVE-2007-0004?: The NFS client implementation in the kernel in Red Hat Enterprise Linux (RHEL) 3, when a filesystem is mounted with the noacl option, checks permissions for the open system call via vfs_permission (mode bits) data rather than an NFS ACCESS call to the server, which allows local client processes to obtain a false success status from open calls that the server would deny, and possibly obtain sensitive information about file permissions on the server, as demonstrated in a root_squash environment. NOTE: it is uncertain whether any scenarios involving this issue cross privilege boundaries.
How severe is CVE-2007-0004?: CVE-2007-0004 has a CVSS 2.0 base score of 1.9, rated low severity.
Is CVE-2007-0004 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-0004?: CVE-2007-0004 affects Redhat Enterprise Linux. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-0004?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-0004 published?: CVE-2007-0004 was published on 2007-09-18 and last updated on 2026-06-16.

References

https://bugzilla.redhat.com/show_bug.cgi?id=199715

Affected products (1)

cpe:2.3:o:redhat:enterprise_linux:3.0:*:*:*:*:*:*:*

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