Known vulnerabilities in Junos OS 21.4R3-S9

Vendor: Juniper Networks, Inc.

Software: Junos OS

Version: 21.4R3-S9

Software CPE: cpe:2.3:o:juniper_networks:juniper_junos_os:*:*:*:*:*:*:*:*

Website: https://www.juniper.net/us/en/

Total vulnerabilities: 4

Public exploits: 0

Known exploited (KEV): 1

Highest CVSSv4 Score: 8.8

Vulnerabilities (4)

Vulnerability	CWE-ID	CSH Severity	Public Exploit	KEV	First fixed release	Published	Bulletins
#VU130698 - Improper Check for Unusual or Exceptional Conditions CVE-2026-33790	CWE-754	Medium	No	No	21.2R3-S10, 21.4R3-S12, 22.4R3-S9, 23.2R2-S6, 23.4R2-S7, 24.2R2-S3, 24.4R2-S3, 25.2R1-S2, 25.2R2, 25.4R1	08.05.2026	SB2026050823
#VU105679 - Permissions, Privileges, and Access Controls CVE-2025-21590	CWE-264	High	No	Exploited	21.2R3-S9, 21.4R3-S10, 22.2R3-S6, 22.4R3-S6, 23.2R2-S3, 23.4R2-S4, 24.2R1-S2, 24.2R2, 24.4R1	12.03.2025	SB2025031279
#VU102521 - Improper control of a resource through its lifetime CVE-2025-21593	CWE-664	Medium	No	No	21.2R3-S9, 21.4R3-S10, 22.2R3-S5, 22.3R3-S4, 22.4R3-S3, 23.2R2-S2, 23.4R2, 24.2R1	10.01.2025	SB2025011008
#VU98389 - Deadlock CVE-2024-47506	CWE-833	Medium	No	No	21.3R3-S1, 21.4R3, 22.1R2, 22.2R1-S2, 22.2R2, 22.3R1	11.10.2024	SB2024101108