How severe is CVE-1999-1569?

CVE-1999-1569 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-1999-1569 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1569?

CVE-1999-1569 affects Id Software Quake. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1569?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-1999-1569 published?

CVE-1999-1569 was published on 2001-07-17 and last updated on 2026-06-16.

CVE-1999-1569

CVE-1999-1569 is a medium-severity vulnerability in Id Software Quake 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

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Id Software Quake
Published: 2001-07-17
Last modified: 2026-06-16

Description

Quake 1 and NetQuake servers allow remote attackers to cause a denial of service (resource exhaustion or forced disconnection) via a flood of spoofed UDP connection packets, which exceeds the server's player limit.

Frequently asked questions

What is CVE-1999-1569?: Quake 1 and NetQuake servers allow remote attackers to cause a denial of service (resource exhaustion or forced disconnection) via a flood of spoofed UDP connection packets, which exceeds the server's player limit.
How severe is CVE-1999-1569?: CVE-1999-1569 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-1569 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1569?: CVE-1999-1569 affects Id Software Quake. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1569?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1569 published?: CVE-1999-1569 was published on 2001-07-17 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:id_software:quake:1.9:*:*:*:*:*:*:*

More vulnerabilities in Id Software Quake

CVE-1999-1502 — High (CVSS 7.5): Buffer overflows in Quake 1.9 client allows remote malicious servers to execute arbitrary commands via long (1)…
CVE-2000-1080 — Medium (CVSS 5.0): Quake 1 (quake1) and ProQuake 1.01 and earlier allow remote attackers to cause a denial of service via a malformed…

All CVEs affecting Id Software Quake →