HOMEVULNERABILITIESCVE-2021-3617
HIGH

CVE-2021-3617

CWE-78Published: August 17, 2021· Updated: Jun 17, 2026

7.2
CVSS v3.1

Official Description

A vulnerability was reported in Lenovo Smart Camera X3, X5, and C2E that could allow command injection by setting a specially crafted network configuration. This vulnerability is the same as CNVD-2020-68652.

NVD Source

Technical Analysis

CVE-2021-3617 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high 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), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/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

ADVISORYhttps://iknow.lenovo.com.cn/detail/dc_198417.html
ADVISORYhttps://iknow.lenovo.com.cn/detail/dc_198417.html

All References (4)

→
https://iknow.lenovo.com.cn/detail/dc_198417.htmlVendor Advisory
→
https://www.cnvd.org.cn/flaw/show/CNVD-2020-68652Not Applicable
→
https://iknow.lenovo.com.cn/detail/dc_198417.htmlVendor Advisory
→
https://www.cnvd.org.cn/flaw/show/CNVD-2020-68652Not Applicable

Quick Facts

CVE IDCVE-2021-3617
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedAug 17, 2021

Related CVEs (CWE-78)

CVE-2022-33194
10.0
CVE-2017-14459
10.0
CVE-2022-33192
10.0
CVE-2022-33193
10.0
CVE-2022-33195
10.0
CVE-2014-0659
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-3617 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.
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