Is CVE-2026-103993 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-103993?

CVE-2026-103993 has a CVSS v3 severity of MEDIUM (6.8).

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CVE-2026-103993

Description

An Out-of-bounds Write vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker which sends a specific set of BGP communities to cause a Denial-of-Service (DoS) as rpd crashes when graceful-shutdown sender community is added when attempting to advertise.