CVE-2026-77853

8.7 highEPSS 1.9%

High (8.7). EPSS 1.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

8.7 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.0

8.8 high

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2026-09-15
Modified: 2026-09-16
Record from: the NVD, synced 2026-10-19

References

https://5g.liteon.com/security/flexfi/
https://jvn.jp/en/jp/JVN02049764/

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