Vulnerability · Published May 29, 2026 · Assigned by Nozomi
CVE-2025-41277
Critical 9.3
In plain English
A critical-severity OS command injection in WF-500 from Waterfall. 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 4.0)9.3Critical
Exploit odds (30 days)1.4%top 27.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Nozomi Networks Labs identified a CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in the Console WebUI in Waterfall WF-500 TX and RX Hosts in version 7.9.1.0 R2502171040 that allows remote unauthenticated attackers to execute arbitrary operating system commands on the device.
Affected products (as reported)
Weakness: CWE-78 · Vector: 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
References
- https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-41277 third-party-advisory