CVE-2007-2763: Buffer overflow in the UnlockSupport function in the LockModules subsystem in a certain ActiveX control in ltm

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HIGH 10.0DOWNGRADE

CVE-2007-2763 is a high-severity flaw (CVSS 10.0) affecting digital music mentor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the UnlockSupport function in the LockModules subsystem in a certain ActiveX control in ltmm15.dll in Sienzo Digital Music Mentor (DMM) 2.6.0.4 allows remote attackers to execute arbitrary code via a long string in the second argument, a different issue than CVE-2007-2564.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	7.8% (top 5%)
CISA exploited list	No
Published	2007-05-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: sienzo

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

Am I affected?

Timeline

2007-05-18 22:30 UTCPublished CVE record published
2026-06-16 22:40 UTCUpdated Record last modified

sienzo digital music mentor DOWNGRADE

Affected: 2.6.0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.6.0.4

1. Check installed version

apt-cache policy digital-music-mentor || rpm -q digital-music-mentor || digital-music-mentor --version

2. No fixed release: DOWNGRADE to a release before 2.6.0.4 (Debian / Ubuntu)

apt-cache madison digital-music-mentor sudo apt install digital-music-mentor=<VERSION_BEFORE_2.6.0.4> sudo apt-mark hold digital-music-mentor

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

dnf --showduplicates list digital-music-mentor sudo dnf downgrade digital-music-mentor-<VERSION_BEFORE_2.6.0.4> sudo dnf versionlock add digital-music-mentor

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.

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: LeadTools MultiMedia 15 - 'Ltmm15.dll' ActiveX Control Stack Buffer Overflow

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-2007-2763?

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

Is CVE-2007-2763 being exploited?

CVE-2007-2763 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-2007-2763 affect?

CVE-2007-2763 affects digital music mentor. Severity is high (CVSS 10.0). Buffer overflow in the UnlockSupport function in the LockModules subsystem in a certain ActiveX control in ltmm15.dll in Sienzo Digital Music Mentor (DMM) 2.6.0.4 allows remote attackers to execute arbitrary code via a long string in the se

How urgent is CVE-2007-2763?

Priority 64/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2007-2564 HIGH 10.0 DOWNGRADE Multiple stack-based buffer overflows in the Sienzo Digital Music Mentor (DMM) 2.6.0.4 ActiveX control (DSKern

References

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