CVE-2023-2992Network attack vector

Unauthenticated service interruption via crafted web requests

Published Jun 26, 2023 · Updated Sep 16, 2024

Denial of service in Lenovo SMM v1, SMM v2, and FPC firmware allows remote attackers to interrupt the management web server. The management web server mishandles crafted unauthenticated input, but Lenovo has not disclosed the request form or the resource consumed. Network reachability is sufficient with no credentials or user interaction, and the interruption persists until the affected SMM or FPC is rebooted.

CVSS severity7.5
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Lenovo SMM v1, SMM v2, and FPC firmware allows remote attackers to interrupt the management web server. The management web server mishandles crafted unauthenticated input, but Lenovo has not disclosed the request form or the resource consumed. Network reachability is sufficient with no credentials or user interaction, and the interruption persists until the affected SMM or FPC is rebooted.

The record

CVE
CVE-2023-2992
Published
Jun 26, 2023
Updated
Sep 16, 2024
Vendor
Lenovo
Product
Lenovo NeXtScale n1200 Enclosure Firmware
Classifications
CWE-405, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <fhet60b-3.40

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lenovo · Lenovo NeXtScale n1200 Enclosure Firmwareversion=0 <fhet60b-3.40
Lenovo · Lenovo System Management Module Firmwareversion=various
Lenovo · Lenovo ThinkSystem D2 Enclosure Firmwareversion=0 <tesm38c-1.2
Lenovo · Lenovo Fan/Power Controller Module Firmwareversion=various
Lenovo · Lenovo ThinkAgile VX Enclosure Firmwareversion=0 <tesm38c-1.2
Lenovo · Lenovo ThinkAgile CP-CB-10E Firmwareversion=0 <tesm38c-1.2
Lenovo · Lenovo ThinkSystem DA240 Enclosure Firmwareversion=0 <tesm38c-1.2
Lenovo · Lenovo ThinkSystem DW612 Enclosure Firmwareversion=0 <tesm38c-1.2
Lenovo · Lenovo ThinkAgile CP-CB-10 Firmwareversion=0 <tesm38c-1.2
Lenovo · Lenovo ThinkAgile HX Enclosure Firmwareversion=0 <tesm38c-1.2

Published CVSS scores

7.5Lenovo Group Ltd.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-405Asymmetric Resource Consumption (Amplification)
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

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Your stack

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