Vulnerability · Published Dec 1, 2021 · Assigned by jpcert
CVE-2021-20855
Medium 5.4
In plain English
A medium-severity security flaw in ELECOM LAN routers from ELECOM CO.,LTD.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)0.6%top 50.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Cross-site scripting vulnerability in ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ELECOM CO.,LTD. | ELECOM LAN routers | WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior |
References
- https://www.elecom.co.jp/news/security/20211130-01/ x_refsource_MISC
- https://jvn.jp/en/jp/JVN88993473/index.html x_refsource_MISC