CVE-2024-23594

Privileged local code execution via stack overflow

Published Apr 15, 2024 · Updated Sep 6, 2024

Stack-based buffer overflow in Lenovo's recovery bootloader on 2012–2014 Windows 7 and 8 preloads allows local users to execute code. Lenovo identifies the affected component as the system recovery bootloader but has not published the overflowing operation or attacker-controlled input. Exploitation requires privileged local access and enables arbitrary code execution in the boot environment; no supported Lenovo devices are affected.

CVSS severity6.4
Medium
EPSS probability0.24%
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

Stack-based buffer overflow in Lenovo's recovery bootloader on 2012–2014 Windows 7 and 8 preloads allows local users to execute code. Lenovo identifies the affected component as the system recovery bootloader but has not published the overflowing operation or attacker-controlled input. Exploitation requires privileged local access and enables arbitrary code execution in the boot environment; no supported Lenovo devices are affected.

The record

CVE
CVE-2024-23594
Published
Apr 15, 2024
Updated
Sep 6, 2024
Vendor
Lenovo
Product
Windows 7 and 8 PC Preloads
Classifications
CWE-121, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Apr 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 6, 2024Record 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=various

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Lenovo · Windows 7 and 8 PC Preloadsversion=various

Published CVSS scores

6.4LenovoCVSS:3.1/AV:L/AC:H/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
T1068Exploitation for Privilege Escalation

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