CVE-2026-77853
HighCVSS 8.8Exploitation Probability (EPSS)
Elevated risk62th percentile - higher than 62% of all known CVEs
Summary
An improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in FF-RFI079I4 and FF-RFI078I4. A user who can log in to the product's M-Plane (NETCONF) may execute arbitrary OS commands. It requires access to the NETCONF interface.
Risk Assessment
A user with M-Plane (NETCONF) access can execute arbitrary OS commands, potentially leading to full device compromise. It requires NETCONF interface access.
Recommendation
Restrict M-Plane (NETCONF) access to trusted administrators and apply the vendor fix when available. Monitor for unusual commands sent via NETCONF.
Other vulnerabilities in FF-RFI079I4 and FF-RFI078I4
Original NVD description (English source)
Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in FF-RFI079I4 and FF-RFI078I4. A user who can log in to the product's M-Plane (NETCONF) may execute arbitrary OS commands.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

