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CVE Record

CVE-2017-12100: An exploitable integer overflow exists in the 'multires_load_old_dm' functionality of the Blender open-sour...

An exploitable integer overflow exists in the 'multires_load_old_dm' functionality of the Blender open-source 3d creation suite v2.78c. A specially crafted .blend file can cause an integer overflow resulting in a buffer overflow which can allow for code execution under the context of the application. An attacker can convince a user to open a .blend file in order to trigger this vulnerability.

HighCVSS 8.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This Blender flaw can let a malicious .blend project file run code when opened by a user. The main business risk is compromise of workstations used for 3D content review, especially where teams receive files from customers, partners, or public sources.

Executive priority

Treat this as a high-priority workstation risk if Blender is used with external files. Urgency is lower where Blender is absent or fully patched, because exploitation requires a user opening a malicious file.

Technical view

CVE-2017-12100 is an integer overflow in Blender v2.78c 32-bit, in multires_load_old_dm. A crafted .blend file can trigger a buffer overflow and possible code execution in the application context. The CVSS 3.0 score is 8.8, with user interaction required.

Likely exposure

Exposure is most likely where Blender v2.78c 32-bit is installed and users open external .blend files. The supplied evidence does not identify other affected versions or products.

Exploitation context

The source bundle describes exploitation through convincing a user to open a specially crafted .blend file. It does not show KEV listing or cite active exploitation in the wild.

Researcher notes

Talos attributes the issue to multires_load_old_dm integer overflow leading to buffer overflow. The provided evidence is specific to Blender v2.78c 32-bit and Debian security updates. No KEV evidence is supplied.

Mitigation direction

  • Apply Blender security updates from the vendor or operating system distributor.
  • For Debian systems, review DSA-4248 and DLA-1465-1 package guidance.
  • Avoid opening untrusted .blend files on vulnerable Blender installations.
  • Use isolated review workstations for external 3D project files.
  • If patch status is unclear, check current vendor guidance before relying on compensating controls.

Validation and detection

  • Inventory endpoints for Blender v2.78c 32-bit installations.
  • Confirm Debian systems have received the relevant Blender security update.
  • Identify teams that receive .blend files from external parties.
  • Review file-handling workflows for untrusted 3D assets.
  • Document any remaining vulnerable systems and business justification.
Prepared
Confidence
high
Sources
5

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2017-12100 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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
0Timeline events
0ADP providers
4Source links

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
8.8CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

8.8High
CVSS 3.0 vector shape for CVE-2017-12100Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
BlenderBlenderv2.78c (32-bit)Listed
Weakness

CWE details

No CWE listed

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