CVE-2026-97854 Yamaha wireless LAN router NWR100 provided by Yamaha Corporation contains an OS command injection vulnerability. Arbitrary OS commands may be executed by sending a specially crafted request to the aff...

CriticalCVSS 9.3 EPSS 1.4%

Published: 2026-10-29 13:33
Updated: 2026-10-29 17:45
Exploit status: No public exploit known

Description

Yamaha wireless LAN router NWR100 provided by Yamaha Corporation contains an OS command injection vulnerability. Arbitrary OS commands may be executed by sending a specially crafted request to the affected product.

Affected products

Product	Affected versions	Fixed in
Yamaha Corporation NWR100	<= Rev.26.00.07	No fix listed

References

CVSS v4.0

9.3 Critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: None
User Interaction: None
Vulnerable System Confidentiality: High
Vulnerable System Integrity: High
Vulnerable System Availability: High
Subsequent System Confidentiality: None
Subsequent System Integrity: None
Subsequent System Availability: None

All scores (4)

v4.0 9.3 · jpcert
v4.0 9.3 · vultures@jpcert.or.jp
v3.1 9.8 · jpcert
v3.1 9.8 · vultures@jpcert.or.jp

Weakness & likelihood

EPSS (exploitation probability, 30 days): 1.37% (percentile 72.3)
CWE: CWE-78 Improper neutralization of special elements used in an OS command ('OS Command Injection')

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.