MEDIUM
CVE-2021-3720
CWE-276Published: November 12, 2021· Updated: Jun 17, 2026
5.5
CVSS v3.1
Official Description
An information disclosure vulnerability was reported in the Time Weather system widget on Legion Phone Pro (L79031) and Legion Phone2 Pro (L70081) that could allow other applications to access device GPS data.
Technical Analysis
CVE-2021-3720 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Vendors & Products
Lenovo4 product(s)
legion phone pro \(l79031\)firmwarelegion phone pro \(l79031\)legion phone2 pro \(l70081\) firmwarelegion phone2 pro \(l70081\)
Source: NVD CPE · 4 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://iknow.lenovo.com.cn/detail/dc_199217.htmlVendor Advisory
→
https://iknow.lenovo.com.cn/detail/dc_199217.htmlVendor Advisory
Quick Facts
CVE IDCVE-2021-3720
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-276
CISA KEVNo
Affected1 vendor(s)
PublishedNov 12, 2021
Related CVEs (CWE-276)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-3720 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.