VulnerabilityModified
CVE-2021-20649
ELECOM WRC-300FEBK-S contains an improper certificate validation vulnerability.
MEDIUM 4.8EPSS 0.33%
Does this matter?
Lower severity and a low EPSS score (0.33%). Track it; it rarely justifies an emergency change on its own.
Description
ELECOM WRC-300FEBK-S contains an improper certificate validation vulnerability. Via a man-in-the-middle attack, an attacker may alter the communication response. As a result, an arbitrary OS command may be executed on the affected device.
- CVSS 3.1
- 4.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 0.33% probability · 26th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- elecom/wrc-300febk-s firmware
- Source
- vultures@jpcert.or.jp
EPSS 0.3% since 26 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/JVN47580234/index.htmlThird Party Advisory
- https://www.elecom.co.jp/news/security/20210126-01/Vendor Advisory
- https://jvn.jp/en/jp/JVN47580234/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.