CyberSecBulletin
CVE-2026-16465NVD status: Analyzed

AutoCAD: Out-of-bounds Read

Published Updated By the CyberSecBulletin desk

CVE-2026-16465 is a high-severity out-of-bounds read vulnerability in AutoCAD from Autodesk, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. The record lists version 2027.1.0 as the first without the flaw, so updating AutoCAD to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.26% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update AutoCAD to 2027.1.0 or a later version.
  2. Update AutoCAD LT to 2027.1.0 or a later version.
  3. Update DWG TrueView to 2027.1.0 or a later version.
  4. Read the advisory on autodesk.com for workarounds and exact fixed builds.
  5. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
AutodeskAutoCAD2027.0.0 up to, but not including, 2027.1.02027.1.0
AutodeskAutoCAD LT2027.0.0 up to, but not including, 2027.1.02027.1.0
AutodeskDWG TrueView2027.0.0 up to, but not including, 2027.1.02027.1.0
AutodeskAdvance Steel2026 up to, but not including, 2026.1.2; 20272026.1.2
AutodeskAutocad Architecture2026 up to, but not including, 2026.1.2; 20272026.1.2
AutodeskAutocad Electrical2026 up to, but not including, 2026.1.2; 20272026.1.2
AutodeskAutocad Map 3d2026 up to, but not including, 2026.1.2; 20272026.1.2
AutodeskAutocad Mechanical2026 up to, but not including, 2026.1.2; 20272026.1.2
AutodeskAutocad Mep2026 up to, but not including, 2026.1.2; 20272026.1.2
AutodeskAutocad Plant 3d2026 up to, but not including, 2026.1.2; 20272026.1.2
AutodeskCivil 3d2026 up to, but not including, 2026.1.2; 20272026.1.2

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.16.1MediumCNA (autodesk.com)
CVSS 3.17.1HighNVD

Official description

A maliciously crafted DWG or DXF file, when parsed through Autodesk AutoCAD, can force an Out-of-Bounds Read vulnerability. A malicious actor can leverage this vulnerability to cause a crash or disclose sensitive information.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

How developers prevent this class of flaw

  • Use a language that provides appropriate memory abstractions.

More Out-of-bounds Read vulnerabilities (CWE-125)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in AutoCAD

All AutoCAD vulnerabilities

Recent Out-of-bounds Read vulnerabilities

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