Out-of-bounds read in TensorFlow - CVE-2021-29551
Published: May 13, 2021 / Updated: May 4, 2026
Vulnerability identifier: #VU129341
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-29551
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
TensorFlow
TensorFlow
Software vendor:
TensorFlow
TensorFlow
Description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to out-of-bounds read in MatrixTriangularSolve when processing empty input tensors after a failed validation condition. A remote attacker can send crafted input tensors to disclose sensitive information.
The issue occurs because kernel execution is not terminated after the validation check sets a non-OK status.
Remediation
Install security update from vendor's website.