Known vulnerabilities in Junos OS 21.2R1-S1

Vendor: Juniper Networks, Inc.
Software: Junos OS
Version: 21.2R1-S1
Software CPE: cpe:2.3:o:juniper_networks:juniper_junos_os:*:*:*:*:*:*:*:*
Website: https://www.juniper.net/us/en/
Total vulnerabilities: 211
Public exploits: 6
Known exploited (KEV): 6
Highest CVSSv4 Score: 9.3

Vulnerabilities by Severity

Severity distribution of vulnerabilities affecting Junos OS version 21.2R1-S1 Junos OS 21.2R1-S1 is affected by 211 vulnerabilities: 19 high, 162 medium, 30 low Critical High Medium Low

Vulnerabilities (211)

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
#VU102533 - Out-of-bounds read
CVE-2025-21600		 CWE-125 Medium
No
No
 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S5, 23.2R2-S3, 23.4R2-S3, 24.2R1-S2, 24.2R2, 24.4R1 10.01.2025 SB2025011032
#VU102532 - Improper Check or Handling of Exceptional Conditions
CVE-2025-21602		 CWE-703 Medium
No
No
 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S5, 23.2R2-S3, 23.4R2-S3, 24.2R1-S2, 24.2R2, 24.4R1 10.01.2025 SB2025011027
#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
#VU98410 - Missing release of memory after effective lifetime
CVE-2024-47493		 CWE-401 Medium
No
No
 21.2R3-S7, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R2, 23.4R1, 23.4R2, 24.1R1 11.10.2024 SB2024101136
#VU98404 - Improper Handling of Exceptional Conditions
CVE-2024-39526		 CWE-755 Medium
No
No
 21.2R3-S7, 21.4R3-S6, 22.2R3-S3, 22.4R3, 23.2R2, 23.4R2, 24.2R1 11.10.2024 SB2024101131
#VU98394 - NULL Pointer Dereference
CVE-2024-47501		 CWE-476 Low
No
No
 21.2R3-S1, 21.3R3, 21.4R2, 22.1R1 11.10.2024 SB2024101113
#VU98392 - Improper Check or Handling of Exceptional Conditions
CVE-2024-39525		 CWE-703 Medium
No
No
 21.2R3-S8, 21.4R3-S8, 22.2R3-S4, 22.3R3-S4, 22.4R3-S3, 23.2R2-S1, 23.4R2, 24.2R1 11.10.2024 SB2024101111
#VU98358 - Improper Check for Unusual or Exceptional Conditions
CVE-2024-47499		 CWE-754 Medium
No
No
 21.2R3-S8, 21.4R3-S8, 22.2R3-S4, 22.3R3-S3, 22.4R3-S2, 23.2R2-S1, 23.4R1-S2, 23.4R2, 24.2R1 10.10.2024 SB2024101031
#VU94357 - Missing release of memory after effective lifetime
CVE-2024-39550		 CWE-401 Medium
No
No
 21.2R3-S8, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3-S1, 23.2R2, 23.4R2, 24.2R1 16.07.2024 SB2024071608
#VU94354 - Improper Handling of Exceptional Conditions
CVE-2024-39552		 CWE-755 Medium
No
No
 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R2, 23.4R1 16.07.2024 SB2024071601
#VU94352 - Improper Neutralization of Data within XPath Expressions
CVE-2024-39565		 CWE-643 Medium
No
No
 21.2R3-S8, 21.4R3-S7, 22.2R3-S4, 22.3R3-S3, 22.4R3-S2, 23.2R2, 23.4R1-S1, 23.4R2, 24.2R1 15.07.2024 SB2024071554
#VU94350 - Unchecked Return Value
CVE-2024-39558		 CWE-252 Medium
No
No
 20.4R3-S10, 21.2R3-S7, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3, 22.4R2, 23.2R1 15.07.2024 SB2024071552
#VU94348 - Improper Check for Unusual or Exceptional Conditions
CVE-2024-39561		 CWE-754 Medium
No
No
 21.2R3-S8, 21.4R3-S7, 22.1R3-S6, 22.2R3-S4, 22.3R3-S3, 22.4R3-S2, 23.2R2, 23.4R1-S1, 23.4R2, 24.2R1 15.07.2024 SB2024071550
#VU94346 -
CVE-2024-39542		 Medium
No
No
 21.2R3-S4, 21.4R2, 22.2R2-S1, 22.2R3, 22.3R1 15.07.2024 SB2024071548
#VU94340 - Memory corruption
CVE-2024-39543		 CWE-119 Low
No
No
 21.2R3-S8, 21.4R3-S8, 22.2R3-S4, 22.3R3-S3, 22.4R3-S2, 23.2R2-S1, 23.4R2 15.07.2024 SB2024071530
#VU94338 - Improper input validation
CVE-2024-39511		 CWE-20 Low
No
No
 20.4R3-S10, 21.2R3-S7, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3-S1, 23.2R2, 23.4R1 15.07.2024 SB2024071525
#VU94337 - Missing release of memory after effective lifetime
CVE-2024-39549		 CWE-401 Medium
No
No
 21.2R3-S8, 22.2R3-S4, 22.3R3-S3, 22.4R3-S3, 23.2R2-S1, 23.4R1-S2, 23.4R2, 24.2R1 15.07.2024 SB2024071524
#VU94335 - Unimplemented or Unsupported Feature in UI
CVE-2024-39533		 CWE-447 Medium
No
No
 21.2R3-S7, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R2, 23.4R1 15.07.2024 SB2024071523


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