How severe is CVE-1999-1406?

CVE-1999-1406 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-1999-1406 being actively exploited?

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

What products are affected by CVE-1999-1406?

CVE-1999-1406 affects Redhat Linux. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1406?

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

When was CVE-1999-1406 published?

CVE-1999-1406 was published on 1998-07-29 and last updated on 2026-06-16.

CVE-1999-1406

CVE-1999-1406 is a low-severity vulnerability in Redhat Linux with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Redhat Linux
Published: 1998-07-29
Last modified: 2026-06-16

Description

dumpreg in Red Hat Linux 5.1 opens /dev/mem with O_RDWR access, which allows local users to cause a denial of service (crash) by redirecting fd 1 (stdout) to the kernel.

Frequently asked questions

What is CVE-1999-1406?: dumpreg in Red Hat Linux 5.1 opens /dev/mem with O_RDWR access, which allows local users to cause a denial of service (crash) by redirecting fd 1 (stdout) to the kernel.
How severe is CVE-1999-1406?: CVE-1999-1406 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-1999-1406 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1406?: CVE-1999-1406 affects Redhat Linux. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1406?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1406 published?: CVE-1999-1406 was published on 1998-07-29 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:redhat:linux:5.1:*:*:*:*:*:*:*

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