CVE-2005-1640: mod_channel.bas in The Ignition Project ignitionServer 0.3.0 to 0.3.6, and possibly earlier versions, does not

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HIGH 7.5DOWNGRADE

CVE-2005-1640 is a high-severity flaw (CVSS 7.5) affecting ignitionserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

mod_channel.bas in The Ignition Project ignitionServer 0.3.0 to 0.3.6, and possibly earlier versions, does not properly verify whether a host has the owner privileges required to delete IRC channel access entries, which allows remote attackers to bypass intended restrictions.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Published	2005-05-17
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: the ignition project

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

Am I affected?

Timeline

2005-05-17 04:00 UTCPublished CVE record published
2026-06-16 22:13 UTCUpdated Record last modified

the ignition project ignitionserver DOWNGRADE

Affected: 0.3.0 · 0.3.1 · 0.3.2 · 0.3.3 · 0.3.4 · 0.3.5 · 0.3.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.3.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.3.0 (Debian / Ubuntu)

apt-cache madison ignitionserver sudo apt install ignitionserver=<VERSION_BEFORE_0.3.0> sudo apt-mark hold ignitionserver

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

dnf --showduplicates list ignitionserver sudo dnf downgrade ignitionserver-<VERSION_BEFORE_0.3.0> sudo dnf versionlock add ignitionserver

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-2005-1640?

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

Is CVE-2005-1640 being exploited?

CVE-2005-1640 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-2005-1640 affect?

CVE-2005-1640 affects ignitionserver. Severity is high (CVSS 7.5). mod_channel.bas in The Ignition Project ignitionServer 0.3.0 to 0.3.6, and possibly earlier versions, does not properly verify whether a host has the owner privileges required to delete IRC channel access entries, which allows remote attack

How urgent is CVE-2005-1640?

Priority 52/100. High severity; Public exploit reference

Related CVEs

CVE-2005-1641 LOW 2.1 DOWNGRADE mod_channel in The Ignition Project ignitionServer 0.3.0 to 0.3.6, and possibly earlier versions, does not all
CVE-2004-2553 MEDIUM 6.0 DOWNGRADE The Ignition Project ignitionServer 0.1.2 through 0.1.2-R2 allows remote authenticated users with local IRC op
CVE-2004-2431 HIGH 7.5 DOWNGRADE Unknown vulnerability in The Ignition Project ignitionServer 0.1.2 through 0.3.1, with the linking service ena

References

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