CVE-2026-16463

Code execution via crafted DXF heap overflow

Published Jul 29, 2026 · Updated Jul 29, 2026

Heap overflow in DXF parsing in Autodesk AutoCAD, AutoCAD LT, and DWG TrueView 2026 and 2027 allows attackers to execute code. Autodesk has not disclosed the parser routine, malformed DXF field, or missing bounds check that causes the heap overwrite. A user must open the crafted file; successful exploitation runs code in the current process, while other outcomes include sensitive-data reads or a crash.

CVSS severity7.8
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap overflow in DXF parsing in Autodesk AutoCAD, AutoCAD LT, and DWG TrueView 2026 and 2027 allows attackers to execute code. Autodesk has not disclosed the parser routine, malformed DXF field, or missing bounds check that causes the heap overwrite. A user must open the crafted file; successful exploitation runs code in the current process, while other outcomes include sensitive-data reads or a crash.

The record

CVE
CVE-2026-16463
Published
Jul 29, 2026
Updated
Jul 29, 2026
Vendor
Autodesk
Product
AutoCAD
Classifications
CWE-122, CAPEC-100, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 29, 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=2027.0.0 <2027.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Autodesk · AutoCADversion=2027.0.0 <2027.1.0
Autodesk · AutoCAD LTversion=2027.0.0 <2027.1.0
Autodesk · DWG TrueViewversion=2027.0.0 <2027.1.0

Published CVSS scores

7.8AutodeskCVSS: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
CAPEC-100Overflow Buffers
T1204.002User Execution: Malicious 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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