Known vulnerabilities in Junos OS 21.2R3

Software: Junos OS
Version: 21.2R3
Software CPE: cpe:2.3:o:juniper_networks:juniper_junos_os:*:*:*:*:*:*:*:*
Total vulnerabilities: 108
Public exploits: 5
Known exploited (KEV): 6
Highest CVSSv4 Score: 9.3

Vulnerabilities by Severity

Severity distribution of vulnerabilities affecting Junos OS version 21.2R3 Junos OS 21.2R3 is affected by 108 vulnerabilities: 18 high, 74 medium, 16 low Critical High Medium Low

Vulnerabilities (108)

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
#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
#VU82518 - Stack-based buffer overflow
CVE-2023-44177
CWE-121 Low
No
No
20.4R3-S8, 21.2R3-S6, 21.3R3-S5, 22.1R3-S3, 22.2R3-S1, 22.3R3, 23.2R1 26.10.2023 SB2023102643
#VU82517 - Stack-based buffer overflow
CVE-2023-44178
CWE-121 Low
No
No
20.4R3-S8, 21.2R3-S6, 21.3R3-S5, 22.1R3-S3, 22.2R3-S1, 22.3R3, 23.2R1 26.10.2023 SB2023102643
#VU82516 - Stack-based buffer overflow
CVE-2023-44176
CWE-121 Low
No
No
20.4R3-S8, 21.2R3-S6, 21.3R3-S5, 22.1R3-S3, 22.2R3-S1, 22.3R3, 23.2R1 26.10.2023 SB2023102643
#VU82388 - Memory corruption
CVE-2023-44184
CWE-119 Low
No
No
20.4R3-S7, 21.2R3-S5, 21.3R3-S5, 21.4R3-S4, 22.1R3-S2, 22.2R3, 22.3R2-S1, 22.3R3, 22.4R1-S2, 22.4R2, 23.2R1 25.10.2023 SB2023102557
#VU82387 - Improper Check for Unusual or Exceptional Conditions
CVE-2023-44198
CWE-754 Medium
No
No
20.4R3-S5, 21.1R3-S4, 21.2R3-S4, 21.3R3-S3, 21.4R3-S2, 22.1R2-S2, 22.1R3, 22.2R2-S1, 22.2R3, 22.3R1-S2, 22.3R2, 22.4R1 25.10.2023 SB2023102555
#VU82386 -
CVE-2023-36843
Medium
No
No
20.4R3-S8, 21.2R3-S6, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S2, 22.3R2-S2, 22.3R3, 22.4R2-S1, 22.4R3, 23.1R2, 23.2R1 25.10.2023 SB2023102554
#VU82385 - Out-of-bounds write
CVE-2023-44197
CWE-787 Medium
No
No
20.4R3-S8, 21.2R3-S2, 21.3R3-S5, 21.4R2-S1, 21.4R3-S5, 22.1R1 25.10.2023 SB2023102553
#VU82384 - Reachable Assertion
CVE-2023-44175
CWE-617 Medium
No
No
20.4R3-S7, 21.2R3-S5, 21.3R3-S4, 21.4R3-S4, 22.1R3-S4, 22.2R3, 22.3R2-S1, 22.3R3, 22.4R2, 22.4R3, 23.2R1 25.10.2023 SB2023102552
#VU82303 - Incorrect Permission Assignment for Critical Resource
CVE-2023-44201
CWE-732 Low
No
No
20.4R3-S4, 21.1R3-S4, 21.2R3-S2, 21.3R2-S2, 21.3R3-S1, 21.4R2-S1, 21.4R3, 22.1R1 23.10.2023 SB2023102335
#VU82298 - Incorrect Default Permissions
CVE-2023-44194
CWE-276 Low
No
No
20.4R3-S5, 21.1R3-S4, 21.2R3-S4, 21.3R3-S3, 21.4R3-S1, 22.1R1 23.10.2023 SB2023102332
#VU82254 -
CVE-2023-44182
Medium
No
No
20.4R3-S7, 21.1R3-S5, 21.2R3-S4, 21.2R3-S5, 21.3R3-S4, 21.4R3-S3, 22.1R3-S2, 22.2R2-S2, 22.2R3, 22.3R1-S2, 22.3R2, 22.3R3, 22.4R1 19.10.2023 SB2023101965
#VU82231 - Improperly Implemented Security Check for Standard
CVE-2023-44181
CWE-358 Medium
No
No
20.2R3-S6, 20.3R3-S5, 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.3R3-S2, 21.4R3, 22.1R3, 22.2R2, 22.3R1 18.10.2023 SB20231018144
#VU82230 - Allocation of Resources Without Limits or Throttling
CVE-2023-44191
CWE-770 Medium
No
No
21.2R3-S5, 21.3R3-S5, 21.4R3-S4, 22.1R3-S3, 22.2R3-S1, 22.3R2-S2, 22.3R3, 22.4R2, 23.2R1 18.10.2023 SB20231018143
#VU82229 - Missing release of memory after effective lifetime
CVE-2023-22392
CWE-401 Medium
No
No
20.4R3-S5, 21.1R3-S4, 21.2R3-S2, 21.3R3, 21.4R2-S2, 21.4R3, 22.1R1-S2, 22.1R2, 22.2R1 18.10.2023 SB20231018142


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