CVE-2023-4856
HIGH
8.8
CVSS Score
Published: April 15, 2024 at 05:59 PM UTC
Updated: June 17, 2026 at 06:38 AM UTC
3 products affected across 1 vendorSystem Management Module FirmwareSystem Management ModuleFan Power Controller
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Severity
HIGH8.8
Exploit prediction
EPSS 0.7%
SSVC
No known exploit
Description
A format string vulnerability was identified in SMM/SMM2 and FPC that could allow an authenticated user to execute arbitrary commands on a specific API endpoint.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
1.24 ≤ v < tesm40b-1.271.24
Affected range stops below tesm40b-1.27, so it looks safe — our inference, not a vendor statement
1.24 ≤ v < tesm40b-1.271.24
Affected range stops below tesm40b-1.27, so it looks safe — our inference, not a vendor statement
v < fhet62a-3.50
Affected range stops below fhet62a-3.50, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
8.8HIGHlenovo
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusDEFERRED
CWE
CWE-78
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