Is CVE-2026-18754 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-18754?

CVE-2026-18754 has a CVSS v3 severity of CRITICAL (9.1).

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CVE-2026-18754

Description

The product firmware contains an embedded, static RSA private key utilized by the Lighttpd web server for TLS termination. Exposure of this private key allows malicious actors to breach the confidentiality and integrity of HTTPS communications, enabling traffic decryption and server spoofing.