CVE-2006-3668: Heap-based buffer overflow in the it_read_envelope function in Dynamic Universal Music Bibliotheque (DUMB) 0.9

Q: How do I fix CVE-2006-3668?

dumb: upgrade to newer than 0.9.3. Exact commands for each OS are on this page.

Q: Is CVE-2006-3668 being exploited?

CVE-2006-3668 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-2006-3668 affect?

CVE-2006-3668 affects dumb. Severity is high (CVSS 7.6). Heap-based buffer overflow in the it_read_envelope function in Dynamic Universal Music Bibliotheque (DUMB) 0.9.3 and earlier and current CVS as of 20060716, including libdumb, allows user-assisted attackers to execute arbitrary code via a "

Q: How urgent is CVE-2006-3668?

Priority 56/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

This week

HIGH 7.6UPGRADE

CVE-2006-3668 is a high-severity flaw (CVSS 7.6) affecting dumb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Heap-based buffer overflow in the it_read_envelope function in Dynamic Universal Music Bibliotheque (DUMB) 0.9.3 and earlier and current CVS as of 20060716, including libdumb, allows user-assisted attackers to execute arbitrary code via a ".it" (Impulse Tracker) file with an envelope with a large number of nodes.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.6 (High)
EPSS exploit chance	10.1% (top 4%)
CISA exploited list	No
Weakness	CWE-119
Published	2006-07-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: dynamic universal music bibliotheque

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

Am I affected?

Timeline

2006-07-18 15:47 UTCPublished CVE record published
2026-06-16 22:27 UTCUpdated Record last modified

dynamic universal music bibliotheque dumb UPGRADE

Affected: <= 0.9.3

Fixed in: newer than 0.9.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.9.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dumb

Note

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

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: Dumb 0.9.3 - 'it_read_envelope' Remote Heap Overflow (PoC)

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-2006-3668?

dumb: upgrade to newer than 0.9.3. Exact commands for each OS are on this page.

Is CVE-2006-3668 being exploited?

CVE-2006-3668 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-2006-3668 affect?

CVE-2006-3668 affects dumb. Severity is high (CVSS 7.6). Heap-based buffer overflow in the it_read_envelope function in Dynamic Universal Music Bibliotheque (DUMB) 0.9.3 and earlier and current CVS as of 20060716, including libdumb, allows user-assisted attackers to execute arbitrary code via a "

How urgent is CVE-2006-3668?

Priority 56/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

References

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