How severe is CVE-1999-0896?

CVE-1999-0896 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-1999-0896 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0896?

CVE-1999-0896 affects Realnetworks Realserver G2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-0896?

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-1999-0896 published?

CVE-1999-0896 was published on 1999-11-04 and last updated on 2026-06-16.

CVE-1999-0896

CVE-1999-0896 is a critical-severity vulnerability in Realnetworks Realserver G2 with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Realnetworks Realserver G2
Published: 1999-11-04
Last modified: 2026-06-16

Description

Buffer overflow in RealNetworks RealServer administration utility allows remote attackers to execute arbitrary commands via a long username and password.

Frequently asked questions

What is CVE-1999-0896?: Buffer overflow in RealNetworks RealServer administration utility allows remote attackers to execute arbitrary commands via a long username and password.
How severe is CVE-1999-0896?: CVE-1999-0896 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-1999-0896 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0896?: CVE-1999-0896 affects Realnetworks Realserver G2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0896?: 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-1999-0896 published?: CVE-1999-0896 was published on 1999-11-04 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:realnetworks:realserver_g2:1.0:*:*:*:*:*:*:*

More vulnerabilities in Realnetworks Realserver G2

CVE-2000-0185 — Medium (CVSS 5.0): RealMedia RealServer reveals the real IP address of a Real Server, even if the address is supposed to be private.

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