Security Resilience

CVE-2023-43572

Memory Safety in Lenovo Thinkcentre Neo 30A 27 Gen 4 Firmware ≤ o5nkt33a

Memory Safety
Published
08 November 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 4.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0022 12th percentile
Risk Priority 34 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-43572 is a medium-severity Buffer Over-read (CWE-126) vulnerability in Lenovo Thinkcentre Neo 30A 27 Gen 4 Firmware. Its CVSS base score is 4.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked at the 12th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

A buffer over-read was reported in the BiosExtensionLoader module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to disclose sensitive information.

CWE(s)
CWE-126CWE-125

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
attack.mitre.org →
T1001.002 Steganography Command And Control
Adversaries may use steganographic techniques to hide command and control traffic to make detection efforts more difficult.
attack.mitre.org →
T1001.003 Protocol or Service Impersonation Command And Control
Adversaries may impersonate legitimate protocols or web service traffic to disguise command and control activity and thwart analysis efforts.
attack.mitre.org →
T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
attack.mitre.org →
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
attack.mitre.org →
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-43574Same product: Lenovo Ideacentre 3-07Ada05
CVE-2023-45077Same product: Lenovo Ideacentre 3-07Ada05
CVE-2023-45076Same product: Lenovo Ideacentre 3-07Ada05
CVE-2023-45078Same product: Lenovo Ideacentre 3-07Ada05
CVE-2023-45075Same product: Lenovo Ideacentre 3-07Ada05
CVE-2023-45079Same product: Lenovo Ideacentre 3-07Ada05
CVE-2024-9843Shared CWE-125, CWE-126
CVE-2024-45559Shared CWE-125, CWE-126
CVE-2024-33047Shared CWE-125, CWE-126
CVE-2024-21459Shared CWE-125, CWE-126

Affected Assets

lenovo
ideacentre c5-14imb05 firmware
≤ o4hkt3ca
lenovo
ideacentre 3-07ada05 firmware
≤ o4fkt39a
lenovo
ideacentre 3-07imb05 firmware
≤ m2vkt21a
lenovo
ideacentre 5 14iab7 firmware
≤ m42kt46a
lenovo
ideacentre 5 14irb8 firmware
≤ m4ukt36a
lenovo
ideacentre 5-14acn6 firmware
all versions
lenovo
ideacentre t540-15ama g firmware
all versions
lenovo
thinkcentre neo 70t gen 3 firmware
≤ m40kt45a
lenovo
thinkcentre neo 50t gen 3 firmware
≤ m42kt46a
lenovo
thinkcentre neo 50a 24 gen 4 firmware
≤ o5xkt18a
+101 more product configuration(s) — see NVD for full list

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

ID.RA-01 partial match
blocks

Vulnerability identification processes can discover buffer over-read flaws via scanning or review.

PR.PS-02 partial match
blocks

Patching or replacing vulnerable software removes known instances of buffer over-read bugs.

PR.PS-06 partial match
blocks

Secure development practices directly prevent introduction of buffer over-read weaknesses.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References