CVE-2006-4347: SQL injection vulnerability in user logon authentication request handling in Cool_CoolD.exe in Cool Manager 5.

This month

HIGH 7.5DOWNGRADEDOWNGRADE

CVE-2006-4347 is a high-severity flaw (CVSS 7.5) affecting cool manager, cool messenger office school server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in user logon authentication request handling in Cool_CoolD.exe in Cool Manager 5.0 (5,60,90,28) and Cool Messenger Office/School Server 5.5 (5,65,12,13) allows remote attackers to execute arbitrary SQL commands via the username field.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Published	2006-08-24
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: jiran

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

Am I affected?

Timeline

2006-08-24 21:04 UTCPublished CVE record published
2026-06-16 22:28 UTCUpdated Record last modified

jiran cool manager DOWNGRADE

Affected: 5.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0

1. Check installed version

apt-cache policy cool-manager || rpm -q cool-manager || cool-manager --version

2. No fixed release: DOWNGRADE to a release before 5.0 (Debian / Ubuntu)

apt-cache madison cool-manager sudo apt install cool-manager=<VERSION_BEFORE_5.0> sudo apt-mark hold cool-manager

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

dnf --showduplicates list cool-manager sudo dnf downgrade cool-manager-<VERSION_BEFORE_5.0> sudo dnf versionlock add cool-manager

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.

jiran cool messenger office school server DOWNGRADE

Affected: 5.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.5

1. Check installed version

apt-cache policy cool-messenger-office-school-server || rpm -q cool-messenger-office-school-server || cool-messenger-office-school-server --version

2. No fixed release: DOWNGRADE to a release before 5.5 (Debian / Ubuntu)

apt-cache madison cool-messenger-office-school-server sudo apt install cool-messenger-office-school-server=<VERSION_BEFORE_5.5> sudo apt-mark hold cool-messenger-office-school-server

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

dnf --showduplicates list cool-messenger-office-school-server sudo dnf downgrade cool-messenger-office-school-server-<VERSION_BEFORE_5.5> sudo dnf versionlock add cool-messenger-office-school-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.

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-2006-4347?

cool manager: downgrade or apply the listed mitigation; cool messenger office school server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-4347 being exploited?

CVE-2006-4347 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-2006-4347 affect?

CVE-2006-4347 affects cool manager, cool messenger office school server. Severity is high (CVSS 7.5). SQL injection vulnerability in user logon authentication request handling in Cool_CoolD.exe in Cool Manager 5.0 (5,60,90,28) and Cool Messenger Office/School Server 5.5 (5,65,12,13) allows remote attackers to execute arbitrary SQL commands

How urgent is CVE-2006-4347?

Priority 45/100. High severity

References

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