CVE-2023-31031: nvidia dgx_a100_firmware Heap-based Buffer Overflow

Vulnerability summary

CVE-2023-31031 is a high (CVSS 7.8) Heap-based Buffer Overflow vulnerability in nvidia dgx_a100_firmware. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.6% of scored vulnerabilities.

Timeline

1. 12-01-2024
   PublishedVulnerability first disclosed.
2. 09-10-2025
   Last modifiedVulnerability information updated.

Description

NVIDIA DGX Station A100 and DGX Station A800 SBIOS contains a vulnerability where a user may cause a heap-based buffer overflow by local access. A successful exploit of this vulnerability may lead to code execution, denial of service, information disclosure, and data tampering.

• 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().
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.