CVE-2025-31146

Service interruption via irdman TOCTOU race

Published Nov 11, 2025 · Updated Nov 11, 2025

TOCTOU in Intel Ethernet Adapter Complete Driver Pack before 1.5.1.0 allows remote authenticated users to interrupt ESXi service. Intel identifies the irdman RDMA driver as the locus but does not disclose which resource changes between its check and use. Exploitation requires an unprivileged authenticated user with adjacent access and active user interaction; the reported impact is limited to availability.

CVSS severity5.1
Medium
EPSS probability0.12%
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

TOCTOU in Intel Ethernet Adapter Complete Driver Pack before 1.5.1.0 allows remote authenticated users to interrupt ESXi service. Intel identifies the irdman RDMA driver as the locus but does not disclose which resource changes between its check and use. Exploitation requires an unprivileged authenticated user with adjacent access and active user interaction; the reported impact is limited to availability.

The record

CVE
CVE-2025-31146
Published
Nov 11, 2025
Updated
Nov 11, 2025
Vendor
Topcon Positioning Systems, Inc.
Product
Intel Ethernet Adapter Complete Driver Pack
Classifications
CWE-367, CAPEC-29, CAPEC-27, T1499.004
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 11, 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=before version 1.5.1.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Topcon Positioning Systems, Inc. · Intel Ethernet Adapter Complete Driver Packversion=before version 1.5.1.0

Published CVSS scores

5.1Intel CorporationCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.1Intel CorporationCVSS:3.1/AV:A/AC:L/PR:L/UI:R/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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
CAPEC-29Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
CAPEC-27Leveraging Race Conditions via Symbolic Links
T1499.004Endpoint Denial of Service: Application or System Exploitation

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