Juniper Junos OS SSH config causes mgd crash vulnerability (CVE-2026-21901)
Security Advisory
CVE-2026-21901
Medium
Juniper Networks
Affected:
- Junos OS 22.3 to 22.3R3-S5
- Junos OS 22.4 to 22.4R3-S10
- Junos OS 23.2 to 23.2R2-S7
- Junos OS 23.4 to 23.4R2-S8
- Junos OS Evolved 22.3R1-EVO to 23.2R2-S7-EVO
Fixed in:
- Junos OS 22.3R3-S5
- Junos OS 22.4R3-S10
- Junos OS 23.2R2-S7
- Junos OS 23.4R2-S8
- Junos OS 24.2R1
Referenced CVEs:
CVE-2026-21901 · 4.4
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