CVE-2021-20637
Improper check or handling of exceptional conditions in LOGITEC LAN-W300N/PR5B allows a remote attacker to cause a denial-of-service (DoS) condition by sending a specially crafted URL.
Does this matter?
Lower severity and a low EPSS score (1.03%). Track it; it rarely justifies an emergency change on its own.
Description
Improper check or handling of exceptional conditions in LOGITEC LAN-W300N/PR5B allows a remote attacker to cause a denial-of-service (DoS) condition by sending a specially crafted URL.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.03% probability · 63th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- logitech/lan-w300n\/pr5b firmware
- Source
- vultures@jpcert.or.jp
EPSS 1.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.