Vulnerability · Published Jun 24, 2025 · Assigned by jpcert

CVE-2025-43879

Critical 9.8

In plain English

A critical-severity OS command injection in WRH-733GBK 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 2.2% (higher than 82% of all known vulnerabilities).

Severity (CVSS 3.0)9.8Critical
Exploit odds (30 days)2.2%top 17.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

WRH-733GBK and WRH-733GWH contain an improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability in the telnet function. If a remote unauthenticated attacker sends a specially crafted request to the affected product, an arbitrary OS command may be executed.

Affected products (as reported)

VendorProductVersions
ELECOM CO.,LTD. WRH-733GBK all versions
ELECOM CO.,LTD. WRH-733GWH all versions

Weakness: CWE-78 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References