CVE-2025-10238: CWE-787: Out-of-bounds Write in Lenovo X13 Gen 6 (Type 21RK, 21RL) Laptops (ThinkPad) BIOS
During an internal security assessment, a potential out-of-bounds write vulnerability was discovered in the BIOS of some ThinkPad products could allow a privileged local user to execute code in System Management Mode (SMM).
AI Analysis
Technical Summary
CVE-2025-10238 is an out-of-bounds write vulnerability in the BIOS of Lenovo ThinkPad X13 Gen 6 (Type 21RK, 21RL) laptops. It allows a privileged local user to execute arbitrary code within System Management Mode (SMM), which operates at a higher privilege level than the operating system. This vulnerability was identified during an internal security assessment. The CVSS 4.0 vector indicates low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation could allow a privileged local attacker to execute arbitrary code in System Management Mode, potentially compromising the entire system at a very high privilege level. This could lead to complete system compromise, bypassing OS-level security controls. However, exploitation requires local privileged access.
Mitigation Recommendations
Patch status is not yet confirmed — check the Lenovo vendor advisory for current remediation guidance. Until a fix is available, limit privileged local access to trusted users only. Monitor Lenovo's official channels for updates and apply BIOS updates promptly once released.
CVE-2025-10238: CWE-787: Out-of-bounds Write in Lenovo X13 Gen 6 (Type 21RK, 21RL) Laptops (ThinkPad) BIOS
Description
During an internal security assessment, a potential out-of-bounds write vulnerability was discovered in the BIOS of some ThinkPad products could allow a privileged local user to execute code in System Management Mode (SMM).
CVSS v4.0
Score 8.4high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-10238 is an out-of-bounds write vulnerability in the BIOS of Lenovo ThinkPad X13 Gen 6 (Type 21RK, 21RL) laptops. It allows a privileged local user to execute arbitrary code within System Management Mode (SMM), which operates at a higher privilege level than the operating system. This vulnerability was identified during an internal security assessment. The CVSS 4.0 vector indicates low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation could allow a privileged local attacker to execute arbitrary code in System Management Mode, potentially compromising the entire system at a very high privilege level. This could lead to complete system compromise, bypassing OS-level security controls. However, exploitation requires local privileged access.
Mitigation Recommendations
Patch status is not yet confirmed — check the Lenovo vendor advisory for current remediation guidance. Until a fix is available, limit privileged local access to trusted users only. Monitor Lenovo's official channels for updates and apply BIOS updates promptly once released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- lenovo
- Date Reserved
- 2025-09-10T15:30:05.055Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a29799fc9170919df2daec5
Added to database: 6/10/2026, 2:50:07 PM
Last enriched: 6/10/2026, 3:04:35 PM
Last updated: 6/10/2026, 6:25:34 PM
Views: 10
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