MEDIUM
CVE-2021-3614
CWE-636Published: July 16, 2021· Updated: Jun 17, 2026
6.8
CVSS v3.1
Official Description
A vulnerability was reported on some Lenovo Notebook systems that could allow an attacker with physical access to elevate privileges under certain conditions during a BIOS update performed by Lenovo Vantage.
Technical Analysis
CVE-2021-3614 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorPhysical
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
Lenovo42 product(s)
ideapad 1-11ada05 firmwareideapad 1-11ada05ideapad 1-14ada05 firmwareideapad 1-14ada05v130-15ikb firmwarev130-15ikb100e 2nd gen firmware100e 2nd gen300e 2nd gen firmware300e 2nd genideapad 730-13iml firmwareideapad 730-13iml+30
Source: NVD CPE · 42 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://support.lenovo.com/us/en/product_security/LEN-65529Vendor Advisory
→
https://support.lenovo.com/us/en/product_security/LEN-65529Vendor Advisory
Quick Facts
CVE IDCVE-2021-3614
CVSS Score6.8 / 10
SeverityMEDIUM
WeaknessCWE-636
CISA KEVNo
Affected1 vendor(s)
PublishedJul 16, 2021
Related CVEs (CWE-636)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-3614 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.