Vulnerability · Published Dec 1, 2021 · Assigned by jpcert
CVE-2021-20852
Medium 6.8
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 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS NVD)6.8Medium
Exploit odds (30 days)0.5%top 59.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Buffer overflow vulnerability in ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a network-adjacent attacker with an administrator privilege to execute an arbitrary OS command 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