How severe is CVE-1999-1045?

CVE-1999-1045 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-1999-1045 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1045?

CVE-1999-1045 affects Realnetworks Realserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1045?

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-1999-1045 published?

CVE-1999-1045 was published on 1998-01-15 and last updated on 2026-06-16.

CVE-1999-1045

CVE-1999-1045 is a high-severity vulnerability in Realnetworks Realserver with a CVSS 2.0 base score of 7.8. 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 7.8)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Realnetworks Realserver
Published: 1998-01-15
Last modified: 2026-06-16

Description

pnserver in RealServer 5.0 and earlier allows remote attackers to cause a denial of service by sending a short, malformed request.

Frequently asked questions

What is CVE-1999-1045?: pnserver in RealServer 5.0 and earlier allows remote attackers to cause a denial of service by sending a short, malformed request.
How severe is CVE-1999-1045?: CVE-1999-1045 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-1999-1045 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1045?: CVE-1999-1045 affects Realnetworks Realserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1045?: 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-1999-1045 published?: CVE-1999-1045 was published on 1998-01-15 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:realnetworks:realserver:5.0:*:*:*:*:*:*:*

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