CVE-2026-11803

Code execution via out-of-bounds PDF parsing

Published Aug 6, 2026 · Updated Aug 6, 2026

Out-of-bounds read in Autodesk Revit 2024 through 2027 allows attackers to execute code when a crafted PDF file is opened. Revit's PDF parser reads beyond an intended buffer while processing malformed file data, but Autodesk has not identified the affected routine or field. Exploitation requires a user to open the file and can disclose process data, crash Revit, or execute code with the current process's privileges.

CVSS severity7.8
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Autodesk Revit 2024 through 2027 allows attackers to execute code when a crafted PDF file is opened. Revit's PDF parser reads beyond an intended buffer while processing malformed file data, but Autodesk has not identified the affected routine or field. Exploitation requires a user to open the file and can disclose process data, crash Revit, or execute code with the current process's privileges.

The record

CVE
CVE-2026-11803
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
Autodesk
Product
Revit
Classifications
CWE-125, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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=2026.0.0 <2026.5.0
  2. Affected versionversion=2027.0.0 <2027.2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Autodesk · Revitversion=2026.0.0 <2026.5.0; version=2027.0.0 <2027.2.0

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-125Out-of-bounds Read
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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