Is CVE-2026-77853 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-77853?

CVE-2026-77853 has a CVSS v3 severity of HIGH (8.8).

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CVE-2026-77853

Description

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.