CVE-2025-23308: nvidia cuda_toolkit Heap-based Buffer Overflow

Vulnerability summary

CVE-2025-23308 is a high (CVSS 7.8) Heap-based Buffer Overflow vulnerability in nvidia cuda_toolkit. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.8% of scored vulnerabilities.

Timeline

1. 24-09-2025
   PublishedVulnerability first disclosed.
2. 26-02-2026
   Last modifiedVulnerability information updated.

Description

NVIDIA CUDA Toolkit for all platforms contains a vulnerability in nvdisasm where an attacker may cause a heap-based buffer overflow by getting the user to run nvdisasm on a malicious ELF file. A successful exploit of this vulnerability may lead to arbitrary code execution at the privilege level of the user running nvdisasm.

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().