CVE-2004-2592: Quake II server before R1Q2, as used in multiple products, allows remote attackers to cause a denial of servic

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MEDIUM 5.0DOWNGRADE

CVE-2004-2592 is a medium-severity flaw (CVSS 5.0) affecting quake ii server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Quake II server before R1Q2, as used in multiple products, allows remote attackers to cause a denial of service (application crash) via a modified client that asks the server to send data stored at a negative array offset, which is not handled when processing Configstrings and Baselines.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	3.7% (top 10%)
CISA exploited list	No
Weakness	CWE-20
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: id software

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:09 UTCUpdated Record last modified

id software quake ii server DOWNGRADE

Affected: 3.20 · 3.21

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.20

1. Check installed version

apt-cache policy quake-ii-server || rpm -q quake-ii-server || quake-ii-server --version

2. No fixed release: DOWNGRADE to a release before 3.20 (Debian / Ubuntu)

apt-cache madison quake-ii-server sudo apt install quake-ii-server=<VERSION_BEFORE_3.20> sudo apt-mark hold quake-ii-server

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list quake-ii-server sudo dnf downgrade quake-ii-server-<VERSION_BEFORE_3.20> sudo dnf versionlock add quake-ii-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: ID Software Quake II Server 3.2 - Multiple Vulnerabilities

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2004-2592?

quake ii server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-2592 being exploited?

CVE-2004-2592 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2004-2592 affect?

CVE-2004-2592 affects quake ii server. Severity is medium (CVSS 5.0). Quake II server before R1Q2, as used in multiple products, allows remote attackers to cause a denial of service (application crash) via a modified client that asks the server to send data stored at a negative array offset, which is not hand

How urgent is CVE-2004-2592?

Priority 45/100. Public exploit reference

Related CVEs

CVE-2004-2597 MEDIUM 5.0 DOWNGRADE Quake II server before R1Q2, as used in multiple products, allows remote attackers to bypass IP-based access c
CVE-2004-2596 MEDIUM 5.0 DOWNGRADE Quake II server before R1Q2, as used in multiple products, allows remote attackers to cause a denial of servic
CVE-2004-2593 HIGH 7.5 DOWNGRADE Buffer overflow in command-packet processing of Quake II server before R1Q2, as used in multiple products, all

References

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