CVE-2024-4550

Elevated local code execution via stack overflow

Published Sep 13, 2024 · Updated Sep 16, 2024

Stack-based buffer overflow in Lenovo ThinkSystem and ThinkStation BIOS firmware allows local users with elevated privileges to execute code. Lenovo has not published the affected firmware component, input vector, or erroneous operation that overruns the stack buffer. Exploitation requires local high-privilege access and can compromise firmware execution, confidentiality, integrity, and availability.

CVSS severity6.7
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Lenovo ThinkSystem and ThinkStation BIOS firmware allows local users with elevated privileges to execute code. Lenovo has not published the affected firmware component, input vector, or erroneous operation that overruns the stack buffer. Exploitation requires local high-privilege access and can compromise firmware execution, confidentiality, integrity, and availability.

The record

CVE
CVE-2024-4550
Published
Sep 13, 2024
Updated
Sep 16, 2024
Vendor
Lenovo
Product
ST50 UEFI Firmware
Classifications
CWE-121
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 13, 2024CVE 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 <ite134a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Lenovo · ST50 UEFI Firmwareversion=0 <ite134a
Lenovo · ThinkStation P360 Firmwareversion=0 <s0ekt43a
Lenovo · Lenovo ThinkSystem ST58 V2 BIOSversion=0 <TOE112D
Lenovo · Lenovo ThinkSystem ST50v2 UEFI Firmwareversion=0 <toe112d
Lenovo · Lenovo ThinkStation P360 BIOSversion=0 <=S0EKT43A
Lenovo · Lenovo ThinkSystem ST50 BIOSversion=0 <ITE134A
Lenovo · Lenovo ThinkSystem ST50 V2 BIOSversion=0 <TOE112D
Lenovo · Lenovo ThinkSystem ST58 BIOSversion=0 <ITE134A

Published CVSS scores

6.7Lenovo Group Ltd.CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow

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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