MEDIUM
CVE-2021-20635
CWE-307Published: February 12, 2021· Updated: Jun 17, 2026
6.5
CVSS v3.1
Official Description
Improper restriction of excessive authentication attempts in LOGITEC LAN-WH450N/GR allows an attacker in the wireless range of the device to recover PIN and access the network.
Technical Analysis
CVE-2021-20635 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.
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), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Vendors & Products
logitech2 product(s)
lan-wh450n\/gr firmwarelan-wh450n\/gr
Source: NVD CPE · 2 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://jvn.jp/en/jp/JVN96783542/index.htmlThird Party Advisory
→
https://www.elecom.co.jp/news/security/20210126-01/Vendor Advisory
→
https://jvn.jp/en/jp/JVN96783542/index.htmlThird Party Advisory
→
https://www.elecom.co.jp/news/security/20210126-01/Vendor Advisory
Quick Facts
CVE IDCVE-2021-20635
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-307
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 12, 2021
Related CVEs (CWE-307)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-20635 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.