Is CVE-2026-61876 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-61876?

CVE-2026-61876 has a CVSS v3 severity of HIGH (8.8).

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CVE-2026-61876

Description

LuCI versions fail to properly encode DHCPv6 lease hostnames before rendering in status tables, allowing adjacent network attackers to inject HTML markup. Attackers can send a DHCPv6 Client FQDN containing script tags that execute in the administrator's browser when viewing DHCP lease pages.