Is CVE-2026-103411 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-103411?

CVE-2026-103411 has a CVSS v3 severity of HIGH (7.1).

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CVE-2026-103411

Description

An Integer Underflow vulnerability in DhcpMessageDecoder in Juniper Networks Session Smart Router allows an attacker with local network access to cause information disclosure and a denial of service via a malicious DHCP reply.