CVE-2026-33803

Name of the Vulnerable Software and Affected Versions Junos OS Evolved versions prior to 23.2R2-S7-EVO Junos OS Evolved versions 23.4 through 23.4R2-S8-EVO Junos OS Evolved versions 24.2 through 24.2R2-S5-EVO Junos OS Evolved versions 24.4 through 24.4R2-S4-EVO Junos OS Evolved versions 25.2 through 25.2R2-S1-EVO Junos OS Evolved versions 25.4 through 25.4R1-S2-EVO

Description An improper restriction of communication channel to intended endpoints allows an unauthenticated, network-based attacker to cause limited information disclosure and impact device availability. Due to incorrect initialization, a process intended for internal communication is accessible over the network via an open port, resulting in inadvertent device exposure and increased CPU consumption while processing ingress packets.

Recommendations Update to version 23.2R2-S7-EVO or later. Update to version 23.4R2-S8-EVO or later. Update to version 24.2R2-S5-EVO or later. Update to version 24.4R2-S4-EVO or later. Update to version 25.2R2-S1-EVO or later. Update to version 25.4R1-S2-EVO or later.