How severe is CVE-1999-0873?

CVE-1999-0873 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-1999-0873 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0873?

CVE-1999-0873 affects Sky Communications Skyfull. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-0873?

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

When was CVE-1999-0873 published?

CVE-1999-0873 was published on 1999-10-30 and last updated on 2026-06-16.

CVE-1999-0873

CVE-1999-0873 is a high-severity vulnerability in Sky Communications Skyfull with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sky Communications Skyfull
Published: 1999-10-30
Last modified: 2026-06-16

Description

Buffer overflow in Skyfull mail server via MAIL FROM command.

Frequently asked questions

What is CVE-1999-0873?: Buffer overflow in Skyfull mail server via MAIL FROM command.
How severe is CVE-1999-0873?: CVE-1999-0873 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-1999-0873 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0873?: CVE-1999-0873 affects Sky Communications Skyfull. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0873?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-1999-0873 published?: CVE-1999-0873 was published on 1999-10-30 and last updated on 2026-06-16.

References

http://www.securityfocus.com/bid/759

Affected products (1)

cpe:2.3:a:sky_communications:skyfull:1.1.4:*:*:*:*:*:*:*