Juniper Junos OS chassisd Local Privilege Escalation DoS (CVE-2026-33787)

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Security AdvisoryCVE-2026-33787MediumJuniper

Affected:

Junos OS < 23.2R2-S6 on SRX1500, SRX4100, SRX4200, SRX4600
Junos OS < 23.4R2-S7 on SRX1500, SRX4100, SRX4200, SRX4600
Junos OS < 24.2R2-S2 on SRX1500, SRX4100, SRX4200, SRX4600
Junos OS < 24.4R2 on SRX1500, SRX4100, SRX4200, SRX4600
Junos OS < 25.2R1-S1 or 25.2R2 on SRX1500, SRX4100, SRX4200, SRX4600

Fixed in:

Junos OS 23.2R2-S6
Junos OS 23.4R2-S7
Junos OS 24.2R2-S2
Junos OS 24.4R2
Junos OS 25.2R1-S1

Referenced CVEs: CVE-2026-33787 · 5.5

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