Home/CVE/A buffer overflow in the SystemBootManagerDxe driver in some Lenovo Notebook products may allow an attacker with local p
CVE

CVE-2022-1892

A buffer overflow in the SystemBootManagerDxe driver in some Lenovo Notebook products may allow an attacker with local p

A buffer overflow in the SystemBootManagerDxe driver in some Lenovo Notebook products may allow an attacker with local privileges to execute arbitrary code.

MEDIUM · CVSS 6.7 EPSS 0.00043
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-122Heap-based Buffer Overflow
▤

Affected Products & Versions

60
lenovo 100e 2nd gen firmware< frcn23ww
lenovo 100w gen 3 firmware< gacn38ww
lenovo 13w yoga firmware< jacn31ww
lenovo 14w gen 2 firmware< h0cn21ww
lenovo 300e 2nd gen firmware< frcn23ww
lenovo 300w gen 3 firmware< gacn38ww
lenovo 500w gen 3 firmware< g6cn40ww
lenovo 730s-13iml firmware< brcn20ww
▣

Scoring & Timeline

6.7
MEDIUM · CVSS v3.1 · psirt@lenovo.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Jan 2023 · 09:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.lenovo.com/us/en/product_security/LEN-91369Vendor Advisory
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