How severe is CVE-2004-0511?

CVE-2004-0511 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2004-0511 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-0511?

CVE-2004-0511 primarily affects Sco Openserver. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-0511?

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

When was CVE-2004-0511 published?

CVE-2004-0511 was published on 2004-12-23 and last updated on 2026-06-16.

CVE-2004-0511

CVE-2004-0511 is a low-severity vulnerability in Sco Openserver 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: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sco Openserver
Published: 2004-12-23
Last modified: 2026-06-16

Description

Multiple unknown vulnerabilities in MMDF on OpenServer 5.0.6 and 5.0.7, and possibly other operating systems, may allow attackers to cause a denial of service by triggering a null dereference.

Frequently asked questions

What is CVE-2004-0511?: Multiple unknown vulnerabilities in MMDF on OpenServer 5.0.6 and 5.0.7, and possibly other operating systems, may allow attackers to cause a denial of service by triggering a null dereference.
How severe is CVE-2004-0511?: CVE-2004-0511 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2004-0511 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0511?: CVE-2004-0511 primarily affects Sco Openserver. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0511?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0511 published?: CVE-2004-0511 was published on 2004-12-23 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:o:sco:openserver:5.0.6:*:*:*:*:*:*:*
cpe:2.3:o:sco:openserver:5.0.6a:*:*:*:*:*:*:*
cpe:2.3:o:sco:openserver:5.0.7:*:*:*:*:*:*:*

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