CVE-2023-2290

Code execution via SMI out-of-bounds write

Published Jun 26, 2023 · Updated Dec 3, 2024

Out-of-bounds write in Lenovo ThinkPad firmware allows local users with elevated privileges to execute arbitrary code through the SMI handler. Lenovo identifies the LenovoFlashDeviceInterface SMI handler as the locus but does not disclose which input or write lacks bounds validation. Exploitation requires local access and elevated privileges and can execute code in the firmware's System Management Mode context.

CVSS severity6.4
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Lenovo ThinkPad firmware allows local users with elevated privileges to execute arbitrary code through the SMI handler. Lenovo identifies the LenovoFlashDeviceInterface SMI handler as the locus but does not disclose which input or write lacks bounds validation. Exploitation requires local access and elevated privileges and can execute code in the firmware's System Management Mode context.

The record

CVE
CVE-2023-2290
Published
Jun 26, 2023
Updated
Dec 3, 2024
Vendor
Lenovo
Product
ThinkPad E15
Classifications
CWE-787, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 3, 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=1.23

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Lenovo · ThinkPad E15version=1.23
Lenovo · ThinkPad E490version=1.34
Lenovo · ThinkPad E14 Gen 2version=1.22
Lenovo · ThinkPad E14version=1.23
Lenovo · ThinkPadversion=various

Published CVSS scores

6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.4Lenovo Group Ltd.CVSS: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-787Out-of-bounds Write
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

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Your stack

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