MEDIUM
CVE-2021-3615
CWE-94Published: August 17, 2021· Updated: Jun 17, 2026
6.8
CVSS v3.1
Official Description
A vulnerability was reported in Lenovo Smart Camera X3, X5, and C2E that could allow code execution if a specific file exists on the attached SD card. This vulnerability is the same as CNVD-2021-45262.
Technical Analysis
CVE-2021-3615 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
Lenovo6 product(s)
smart camera c2e firmwaresmart camera c2esmart camera x3 firmwaresmart camera x3smart camera x5 firmwaresmart camera x5
Source: NVD CPE · 6 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 (4)
→
https://iknow.lenovo.com.cn/detail/dc_198417.htmlVendor Advisory
→
https://www.cnvd.org.cn/flaw/show/CNVD-2021-45262Not Applicable
→
https://iknow.lenovo.com.cn/detail/dc_198417.htmlVendor Advisory
→
https://www.cnvd.org.cn/flaw/show/CNVD-2021-45262Not Applicable
Quick Facts
CVE IDCVE-2021-3615
CVSS Score6.8 / 10
SeverityMEDIUM
WeaknessCWE-94
CISA KEVNo
Affected1 vendor(s)
PublishedAug 17, 2021
Related CVEs (CWE-94)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-3615 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.