How severe is CVE-2004-2596?

CVE-2004-2596 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2004-2596 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-2596?

CVE-2004-2596 primarily affects Id Software Quake Ii Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-2596?

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

When was CVE-2004-2596 published?

CVE-2004-2596 was published on 2004-12-31 and last updated on 2026-06-16.

CVE-2004-2596

CVE-2004-2596 is a medium-severity vulnerability in Id Software Quake Ii 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. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Id Software Quake Ii Server
Published: 2004-12-31
Last modified: 2026-06-16

Description

Quake II server before R1Q2, as used in multiple products, allows remote attackers to cause a denial of service (exhaustion of connection slots) via a large number of connections from the same IP address.

Frequently asked questions

What is CVE-2004-2596?: Quake II server before R1Q2, as used in multiple products, allows remote attackers to cause a denial of service (exhaustion of connection slots) via a large number of connections from the same IP address.
How severe is CVE-2004-2596?: CVE-2004-2596 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-2596 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-2596?: CVE-2004-2596 primarily affects Id Software Quake Ii Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-2596?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-2596 published?: CVE-2004-2596 was published on 2004-12-31 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:id_software:quake_ii_server:3.20:*:*:*:*:*:*:*
cpe:2.3:a:id_software:quake_ii_server:3.21:*:*:*:*:*:*:*

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CVE-2004-2593 — High (CVSS 7.5): Buffer overflow in command-packet processing of Quake II server before R1Q2, as used in multiple products, allows…
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