CVE-2023-0204

Service interruption via exceptional-condition mishandling

Published Apr 22, 2023 · Updated Feb 4, 2025

Denial of service in NVIDIA ConnectX-5, ConnectX-6, and ConnectX-6 Dx firmware before 35.1012 allows local users to interrupt network service. The NIC firmware mishandles exceptional conditions triggered by an unprivileged user, but NVIDIA has not disclosed the affected routine or input. Low privileges and local access to a host with an affected adapter are required, and successful exploitation disrupts adapter availability without reported data exposure or modification.

CVSS severity6.5
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in NVIDIA ConnectX-5, ConnectX-6, and ConnectX-6 Dx firmware before 35.1012 allows local users to interrupt network service. The NIC firmware mishandles exceptional conditions triggered by an unprivileged user, but NVIDIA has not disclosed the affected routine or input. Low privileges and local access to a host with an affected adapter are required, and successful exploitation disrupts adapter availability without reported data exposure or modification.

The record

CVE
CVE-2023-0204
Published
Apr 22, 2023
Updated
Feb 4, 2025
Vendor
NVIDIA
Product
NVIDIA ConnectX Firmware
Classifications
CWE-755, CWE-703, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions prior to 35.1012

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

NVIDIA · NVIDIA ConnectX Firmwareversion=All versions prior to 35.1012

Published CVSS scores

6.5NVIDIA CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
7.7NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-755Improper Handling of Exceptional Conditions
CWE-703Improper Check or Handling of Exceptional Conditions
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo