How severe is CVE-1999-1230?

CVE-1999-1230 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-1999-1230 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-1999-1230?

CVE-1999-1230 affects Id Software Quake 2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1230?

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

When was CVE-1999-1230 published?

CVE-1999-1230 was published on 1997-12-24 and last updated on 2026-06-16.

CVE-1999-1230

CVE-1999-1230 is a medium-severity vulnerability in Id Software Quake 2 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: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Id Software Quake 2
Published: 1997-12-24
Last modified: 2026-06-16

Description

Quake 2 server allows remote attackers to cause a denial of service via a spoofed UDP packet with a source address of 127.0.0.1, which causes the server to attempt to connect to itself.

Frequently asked questions

What is CVE-1999-1230?: Quake 2 server allows remote attackers to cause a denial of service via a spoofed UDP packet with a source address of 127.0.0.1, which causes the server to attempt to connect to itself.
How severe is CVE-1999-1230?: CVE-1999-1230 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-1230 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-1999-1230?: CVE-1999-1230 affects Id Software Quake 2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1230?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1230 published?: CVE-1999-1230 was published on 1997-12-24 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:id_software:quake_2:*:*:*:*:*:*:*:*