CVE-1999-1066

CVE-1999-1066 is a medium-severity vulnerability in Sgi Quake 1 Server with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Quake 1 server responds to an initial UDP game connection request with a large amount of traffic, which allows remote attackers to use the server as an amplifier in a "Smurf" style attack on another host, by spoofing the connection request.

Frequently asked questions

What is CVE-1999-1066?
Quake 1 server responds to an initial UDP game connection request with a large amount of traffic, which allows remote attackers to use the server as an amplifier in a "Smurf" style attack on another host, by spoofing the connection request.
How severe is CVE-1999-1066?
CVE-1999-1066 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-1066 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1066?
CVE-1999-1066 affects Sgi Quake 1 Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1066?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1066 published?
CVE-1999-1066 was published on 1999-12-22 and last updated on 2026-06-16.

References

Affected products (1)