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Thinkcentre M625Q Firmware CVE-2023-43575

MEDIUM
Classic Buffer Overflow (CWE-120)
2023-11-08 psirt@lenovo.com
RCE Buffer Overflow Lenovo Thinkcentre M625Q Firmware Thinkcentre M80T Firmware Thinkcentre M80S Firmware Thinkcentre M90T Firmware Thinkcentre M90S Firmware Ideacentre 3 07Imb05 Firmware Ideacentre 5 14Imb05 Firmware Ideacentre 5 14Iob6 Firmware Ideacentre Creator 5 14Iob6 Firmware Ideacentre G5 14Imb05 Firmware Ideacentre Gaming 5 14Iob6 Firmware Thinkcentre M630E Firmware Thinkcentre M70S Firmware Thinkcentre M70T Firmware Thinkcentre M75N Firmware Thinkcentre M75S Gen 2 Firmware Thinkcentre M70C Firmware Thinkcentre M70Q Firmware Thinkcentre M75T Gen 2 Firmware Thinkcentre M80Q Firmware Thinkcentre M90A Firmware Thinkcentre M90Q Tiny Firmware V30A 22Iml Firmware V50A 24Imb Firmware V50S 07Imb Firmware V50A 22Imb Firmware V50T 13Imb Firmware Thinkedge Se30 Firmware Ideacentre Aio 3 27Itl6 Firmware Ideacentre Aio 3 24Itl6 Firmware Ideacentre Aio 3 24Iil5 Firmware Ideacentre Aio 3 22Itl6 Firmware Ideacentre Aio 3 22Iil5 Firmware Ideacentre C5 14Imb05 Firmware Thinkcentre M90A Gen 2 Firmware V30A 24Iml Firmware Ideacentre 5 14Iab7 Firmware Ideacentre 5 14Acn6 Firmware Ideacentre Gaming 5 17Acn7 Firmware Ideacentre Gaming 5 17Iab7 Firmware Ideacentre Gaming 5 14Acn6 Firmware Legion T7 34Imz5 Firmware Thinkcentre M70Q Gen 2 Firmware Thinkcentre M70S Gen 3 Firmware Thinkcentre M70T Gen 3 Firmware Thinkcentre M75Q Gen 2 Firmware Thinkcentre M90Q Gen 2 Firmware Ideacentre 3 07Ada05 Firmware Ideacentre G5 14Amr05 Firmware V55T Gen 2 13Acn Firmware Thinkcentre Neo 50T Gen 3 Firmware Ideacentre T540 15Ama G Firmware Ideacentre Aio 3 24Alc6 Firmware Ideacentre Mini 5 01Imh05 Firmware Ideacentre Aio 3 22Imb05 Firmware Ideacentre Aio 3 24Imb05 Firmware Ideacentre Aio 3 27Imb05 Firmware Thinkstation P320 Workstation Firmware Thinkstation P330 Workstation Firmware Thinkstation P330 Workstation 2Nd Gen Firmware Thinkstation P340 Tiny Workstation Firmware Thinkstation P340 Workstation Firmware Thinkstation P348 Workstation Firmware Thinkstation P350 Tiny Workstation Firmware Thinkstation P350 Workstation Firmware Thinkstation P360 Tiny Workstation Firmware Thinkstation P520 Workstation Firmware Thinkstation P520C Workstation Firmware Thinkstation P720 Workstation Firmware Thinkstation P920 Workstation Firmware Ideacentre Aio 3 21Itl7 Firmware Ideacentre Aio 3 22Iap7 Firmware Ideacentre Aio 3 24Iap7 Firmware Ideacentre Aio 3 27Iap7 Firmware Ideacentre Aio 5 24Iah7 Firmware Ideacentre Aio 5 27Iah7 Firmware Ideacentre Mini 5 01Iaq7 Firmware Legion T7 34Iaz7 Firmware Thinkcentre M80Q Gen 3 Firmware Thinkcentre M80S Gen 3 Firmware Thinkcentre M80T Gen 3 Firmware Thinkcentre M90A Gen 3 Firmware Thinkcentre M90A Pro Gen 3 Firmware Thinkcentre M90Q Gen 3 Firmware Thinkcentre M90S Gen 3 Firmware Thinkcentre M90T Gen 3 Firmware Thinkcentre Neo 30A 22 Gen 3 Firmware Thinkcentre Neo 30A 24 Gen 3 Firmware Thinkcentre Neo 30A 27 Gen 3 Firmware Thinkcentre Neo 70T Gen 3 Firmware V30A 22Itl Firmware V30A 24Itl Firmware Ideacentre 5 14Irb8 Firmware Thinkcentre Neo 50A 24 Gen 4 Firmware Thinkcentre Neo 50A 24 Gen 3 Firmware Thinkcentre Neo 30A 27 Gen 4 Firmware Thinkcentre Neo 30A 24 Gen 4 Firmware Thinkcentre Neo 30A 22 Gen 4 Firmware Thinkcentre M920Z All In One Firmware Thinkcentre M70A Gen 3 Firmware Loq 17Irb8 Firmware Legion T5 26Iab7 Firmware Legion T7 34Irz8 Firmware Legion T5 26Irb8 Firmware V50T 13Imh Firmware V50T 13Iob Firmware Yoga Aio 7 27Arh7 Firmware Yoga Aio 7 27Arh6 Firmware Thinkstation P360 Workstation Firmware Thinkstation P360 Ultra Workstation Firmware Thinkstation P358 Workstation Firmware
6.7
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Buffer copy size validation
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 6.7 (MEDIUM). Attack characteristics: local attack vector, low complexity, high privileges required, no user interaction not required.

Exploit ScenarioDerived

A local attacker with access to the system could overflow a buffer to corrupt adjacent memory.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAI

A buffer overflow was reported in the UltraFunctionTable module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. A buffer overflow was reported in the UltraFunctionTable module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code. Affected products include: Lenovo Ideacentre C5-14Imb05 Firmware, Lenovo Ideacentre 3-07Ada05 Firmware, Lenovo Ideacentre 3-07Imb05 Firmware, Lenovo Ideacentre 5 14Iab7 Firmware, Lenovo Ideacentre 5 14Irb8 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.7 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

A buffer overflow was reported in the UltraFunctionTable module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

Threat Intelligence Overview

EPSS Score
0.2%
Top 86% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:o:lenovo:ideacentre_c5-14imb05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideacentre_3-07ada05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideacentre_3-07imb05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideacentre_5_14iab7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideacentre_5_14irb8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideacentre_5-14acn6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideacentre_t540-15ama_g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_70t_gen_3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_50t_gen_3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_50a_24_gen_4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_50a_24_gen_3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_30a_27_gen_4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_30a_27_gen_4_firmware:o5nkt33a:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_30a_27_gen_3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_30a_24_gen_4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_30a_24_gen_3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_30a_22_gen_4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_neo_30a_22_gen_3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_m920z_all-in-one_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkcentre_m90t_gen_3_firmware:*:*:*:*:*:*:*:*
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