CVE-2006-1402: Buffer overflow in client/server Doom (csDoom) 0.7 and earlier allows remote attackers to (1) cause a denial o

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HIGH 7.5DOWNGRADE

CVE-2006-1402 is a high-severity flaw (CVSS 7.5) affecting csdoom. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in client/server Doom (csDoom) 0.7 and earlier allows remote attackers to (1) cause a denial of service via a long nickname or teamname to the SV_SetupUserInfo function or (2) execute arbitrary code via a long string sent when joining a match or a long chat message to the SV_BroadcastPrintf function.

Why this priority

High severity
EPSS top 9%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	4.4% (top 9%)
CISA exploited list	No
Published	2006-03-28
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: csdoom

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

Am I affected?

Timeline

2006-03-28 11:06 UTCPublished CVE record published
2026-06-16 22:22 UTCUpdated Record last modified

csdoom csdoom DOWNGRADE

Affected: 2005_0.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 2005_0.7

1. Check installed version

apt-cache policy csdoom || rpm -q csdoom || csdoom --version

2. No fixed release: DOWNGRADE to a release before 2005_0.7 (Debian / Ubuntu)

apt-cache madison csdoom sudo apt install csdoom=<VERSION_BEFORE_2005_0.7> sudo apt-mark hold csdoom

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

dnf --showduplicates list csdoom sudo dnf downgrade csdoom-<VERSION_BEFORE_2005_0.7> sudo dnf versionlock add csdoom

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.

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-2006-1402?

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

Is CVE-2006-1402 being exploited?

CVE-2006-1402 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-2006-1402 affect?

CVE-2006-1402 affects csdoom. Severity is high (CVSS 7.5). Buffer overflow in client/server Doom (csDoom) 0.7 and earlier allows remote attackers to (1) cause a denial of service via a long nickname or teamname to the SV_SetupUserInfo function or (2) execute arbitrary code via a long string sent wh

How urgent is CVE-2006-1402?

Priority 54/100. High severity; EPSS top 9%: very likely to be exploited; Public exploit reference

References

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