NVIDIA HGX GB200/HGX GB300/HGC B300/DGX GB200 HGX Management Controller internal asset exposed to unsafe debug access level or state

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in NVIDIA HGX GB200, HGX GB300, HGC B300 and DGX GB200 and classified as critical. Affected by this vulnerability is an unknown functionality of the component HGX Management Controller. This manipulation causes internal asset exposed to unsafe debug access level or state. This vulnerability is registered as CVE-2025-23337. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in NVIDIA HGX GB200, HGX GB300, HGC B300 and DGX GB200 (the affected version unknown). Affected by this vulnerability is an unknown part of the component HGX Management Controller. The manipulation with an unknown input leads to a internal asset exposed to unsafe debug access level or state vulnerability. The CWE definition for the vulnerability is CWE-1244. The product uses physical debug or test interfaces with support for multiple access levels, but it assigns the wrong debug access level to an internal asset, providing unintended access to the asset from untrusted debug agents. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

NVIDIA HGX & DGX GB200, GB300, B300 contain a vulnerability in the HGX Management Controller (HMC) that may allow a malicious actor with administrative access on the BMC to access the HMC as an administrator. A successful exploit of this vulnerability may lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.

It is possible to read the advisory at nvidia.custhelp.com. This vulnerability is known as CVE-2025-23337 since 01/14/2025. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-29828). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.7
VulDB Temp Score: 6.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.7
CNA Vector (nvidia): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Internal asset exposed to unsafe debug access level or state
CWE: CWE-1244 / CWE-489
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/14/2025 CVE reserved
09/17/2025 +246 days VulDB entry created
09/18/2025 +0 days Advisory disclosed
09/18/2025 +0 days VulDB entry last update

Sourcesinfo

Vendor: nvidia.com

Advisory: nvidia.custhelp.com
Status: Confirmed

CVE: CVE-2025-23337 (🔒)
GCVE (CVE): GCVE-0-2025-23337
GCVE (VulDB): GCVE-100-324775
EUVD: 🔒

Entryinfo

Created: 09/18/2025 00:45
Updated: 09/18/2025 03:36
Changes: 09/18/2025 00:45 (60), 09/18/2025 03:36 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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