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CVE Record

CVE-2011-10021: Magix Musik Maker <= v16 .mmm Stack-Based Buffer Overflow

Magix Musik Maker 16 is vulnerable to a stack-based buffer overflow due to improper handling of .mmm arrangement files. The vulnerability arises from an unsafe strcpy() operation that fails to validate input length, allowing attackers to overwrite the Structured Exception Handler (SEH). By crafting a malicious .mmm file, an attacker can trigger the overflow when the file is opened, potentially leading to arbitrary code execution. This vulnerability was remediated in version 17.

HighCVSS 8.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Opening a hostile MAGIX Music Maker arrangement file can crash or compromise systems running vulnerable legacy versions. This is not a network worm risk, but it matters where old media-production workstations still process untrusted .mmm files.

Executive priority

Treat this as a targeted legacy-software risk. Prioritize inventory and removal or upgrade on media-production systems, especially where users exchange project files externally. It is high impact but requires user action and a vulnerable desktop application.

Technical view

The source bundle describes a stack-based buffer overflow in MAGIX Music Maker 16 caused by unsafe handling of .mmm files, including an unchecked strcpy operation and SEH overwrite potential. The stated impact is arbitrary code execution when a user opens a malicious file. Remediation is reported in version 17.

Likely exposure

Exposure is most likely on legacy Windows workstations with MAGIX Music Maker 16 or older that open archived, emailed, downloaded, or partner-supplied .mmm files. The bundle does not establish exposure for current MAGIX products.

Exploitation context

Public exploit references exist in the provided sources, but the CVE is not marked KEV and the bundle does not cite active exploitation. User interaction is required because the vulnerable file must be opened.

Researcher notes

The affected metadata in the bundle appears incomplete or inconsistent, while the description and references identify MAGIX Music Maker 16 and remediation in version 17. Validate product/version exposure locally before assigning remediation owners.

Mitigation direction

  • Upgrade affected MAGIX Music Maker installations to version 17 or later.
  • Remove unsupported legacy Music Maker versions from production workstations.
  • Restrict opening of untrusted .mmm files from email, downloads, or external media.
  • Use endpoint controls to quarantine suspicious arrangement files where feasible.
  • Check MAGIX guidance for current product status and supported upgrade paths.

Validation and detection

  • Inventory endpoints for MAGIX Music Maker 16 or older installations.
  • Identify systems that handle .mmm files from external sources.
  • Confirm upgraded systems run version 17 or later.
  • Review endpoint alerts for suspicious crashes linked to .mmm file handling.
  • Document any legacy exception and compensating controls.
Prepared
Confidence
medium
Sources
7

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-121: Exact CWE lookup

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description · low confidence lookup

Execution behavior lookup

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cve · low confidence lookup

CVE-2011-10021 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.4 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
8Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.4CVSS 4.0HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

8.4High
CVSS 4.0 vector shape for CVE-2011-10021Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MAGIX Software GmbHMagix Musik Maker0unaffected
Weakness

CWE details

CWE-121

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-121 · source CWE mapping

Stack-based Buffer Overflow

Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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