Vulnerability · Published Oct 29, 2026 · Assigned by jpcert
CVE-2026-97854
Critical 9.8
In plain English
A critical-severity OS command injection in NWR100 from Yamaha Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.4%top 28.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Yamaha Corporation | NWR100 | 0 – through Rev.26.00.07 |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H