Autodesk Revit OOB Read via Malicious PDF (CVE-2026-11803)
CVE-2026-11803 Published on August 6, 2026
PDF File Parsing Out-of-Bounds Read Vulnerability in Autodesk Revit
A maliciously crafted PDF file, when parsed through Autodesk Revit, can force an Out-of-Bounds Read vulnerability. A malicious actor can leverage this vulnerability to cause a crash, read sensitive data, or execute arbitrary code in the context of the current process.
Vulnerability Analysis
CVE-2026-11803 can be exploited with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer. Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent read operation then produces undefined or unexpected results.
Products Associated with CVE-2026-11803
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Affected Versions
Autodesk Revit:- Version 2027.0.0 and below 2027.2.0 is affected.
- Version 2026.0.0 and below 2026.5.0 is affected.