What is CVE-2025-43879?

CVE-2025-43879 is a critical-severity vulnerability in Elecom Co.,ltd. Wrh-733gbk, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-06-24.

How severe is CVE-2025-43879?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Elecom Co.,ltd. Wrh-733gbk

CVE-2025-43879

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.026 (83.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Elecom Co.,ltd. Wrh-733gbk — versions all versions
Elecom Co.,ltd. Wrh-733gwh — versions all versions

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

Frequently asked questions

What is CVE-2025-43879?: CVE-2025-43879 is a critical-severity vulnerability in Elecom Co.,ltd. Wrh-733gbk, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-06-24.
How severe is CVE-2025-43879?: Critical severity. CVSS v3 base score is 9.8 out of 10.