How severe is CVE-1999-0951?

CVE-1999-0951 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-1999-0951 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0951?

CVE-1999-0951 primarily affects Omnicron Omnihttpd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0951?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-1999-0951 published?

CVE-1999-0951 was published on 1999-10-22 and last updated on 2026-06-16.

CVE-1999-0951

CVE-1999-0951 is a critical-severity vulnerability in Omnicron Omnihttpd with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Omnicron Omnihttpd
Published: 1999-10-22
Last modified: 2026-06-16

Description

Buffer overflow in OmniHTTPd CGI program imagemap.exe allows remote attackers to execute commands.

Frequently asked questions

What is CVE-1999-0951?: Buffer overflow in OmniHTTPd CGI program imagemap.exe allows remote attackers to execute commands.
How severe is CVE-1999-0951?: CVE-1999-0951 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-1999-0951 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0951?: CVE-1999-0951 primarily affects Omnicron Omnihttpd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0951?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-1999-0951 published?: CVE-1999-0951 was published on 1999-10-22 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:omnicron:omnihttpd:1.1:*:*:*:*:*:*:*
cpe:2.3:a:omnicron:omnihttpd:2.4pro:*:*:*:*:*:*:*

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