CVE-2006-1647: An unspecified "logical programming mistake" in SMART SynchronEyes Student and Teacher 6.0, and possibly earli

Q: How do I fix CVE-2006-1647?

synchroneyes: upgrade to newer than 6.0. Exact commands for each OS are on this page.

Q: Is CVE-2006-1647 being exploited?

CVE-2006-1647 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2006-1647 affect?

CVE-2006-1647 affects synchroneyes. Severity is high (CVSS 7.8). An unspecified "logical programming mistake" in SMART SynchronEyes Student and Teacher 6.0, and possibly earlier versions, allows remote attackers to cause a denial of service via a large packet to the Teacher discovery port (UDP port 5496)

Q: How urgent is CVE-2006-1647?

Priority 53/100. High severity; Public exploit reference

This month

HIGH 7.8UPGRADE

CVE-2006-1647 is a high-severity flaw (CVSS 7.8) affecting synchroneyes. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An unspecified "logical programming mistake" in SMART SynchronEyes Student and Teacher 6.0, and possibly earlier versions, allows remote attackers to cause a denial of service via a large packet to the Teacher discovery port (UDP port 5496), which causes a thread to terminate and prevents communications on that port.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Published	2006-04-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: smart technologies

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

Am I affected?

Timeline

2006-04-06 10:04 UTCPublished CVE record published
2026-06-16 22:23 UTCUpdated Record last modified

smart technologies synchroneyes UPGRADE

Affected: <= 6.0

Fixed in: newer than 6.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 6.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade synchroneyes

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade synchroneyes

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2006-1647?

synchroneyes: upgrade to newer than 6.0. Exact commands for each OS are on this page.

Is CVE-2006-1647 being exploited?

CVE-2006-1647 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-2006-1647 affect?

CVE-2006-1647 affects synchroneyes. Severity is high (CVSS 7.8). An unspecified "logical programming mistake" in SMART SynchronEyes Student and Teacher 6.0, and possibly earlier versions, allows remote attackers to cause a denial of service via a large packet to the Teacher discovery port (UDP port 5496)

How urgent is CVE-2006-1647?

Priority 53/100. High severity; Public exploit reference

Related CVEs

CVE-2006-1648 MEDIUM 5.0 UPGRADE SMART SynchronEyes Student and Teacher 6.0, and possibly earlier versions, allows remote attackers to cause a

References

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