High severity · published Apr 15, 2024
CVE-2023-4857
An authentication bypass vulnerability was identified in SMM/SMM2 and FPC that could allow an authenticated user to execute certain IPMI calls that could lead to exposure of…
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
An authentication bypass vulnerability was identified in SMM/SMM2 and FPC that could allow an authenticated user to execute certain IPMI calls that could lead to exposure of limited system information.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
SMM, SMM2, FPC · Lenovo
various · source: vendor
FP
Fan Power Controller · Lenovo
before fhet62a-3.50 · source: CISA
SM
System Management Module Firmware · Lenovo
1.24 before tesm40b-1.27 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4857
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4857
support.lenovo.com
https://support.lenovo.com/us/en/product_security/LEN-140420
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