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HIGH

CVE-2026-77853

CVSS v3

8.8

HIGH

EPSS Score

1.0 %

exploit probability

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

CVSS v3 Vector
3.0
Published
2026-09-15
Last Modified
2026-09-15

Frequently asked questions

What is CVE-2026-77853?

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.

Is CVE-2026-77853 actively exploited?

Active exploitation of CVE-2026-77853 has not been confirmed. The EPSS score is 1.0%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-77853?

CVE-2026-77853 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string 3.0.

Is CVE-2026-77853 affecting your environment?

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