CVE-2025-5043

Code execution via unchecked 3DM heap buffer copy

Published Jul 29, 2025 · Updated May 4, 2026

Heap-based buffer overflow in Autodesk AutoCAD 2023 through 2025 allows attackers to execute code through a crafted 3DM file. The 3DM parser copies user-supplied data into a fixed-length heap buffer without first validating its length. Exploitation requires a user to link, import, or open the file; successful abuse can crash the process, read sensitive data, or run code with that process's rights.

CVSS severity7.8
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in Autodesk AutoCAD 2023 through 2025 allows attackers to execute code through a crafted 3DM file. The 3DM parser copies user-supplied data into a fixed-length heap buffer without first validating its length. Exploitation requires a user to link, import, or open the file; successful abuse can crash the process, read sensitive data, or run code with that process's rights.

The record

CVE
CVE-2025-5043
Published
Jul 29, 2025
Updated
May 4, 2026
Vendor
Autodesk
Product
Autodesk Shared Components
Classifications
CWE-122, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2025CVE publishedPublication date reported by the CVE source.
  2. May 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.6.2.11 <1.7.0.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Autodesk · Autodesk Shared Componentsversion=1.6.2.11 <1.7.0.10
Autodesk · AutoCADversion=2023 <2023.1.8; version=2024 <2024.1.8; version=2025 <2025.1.3

Published CVSS scores

7.8Trend Micro Zero Day InitiativeCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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