JO
Network Security
Junos OS
by Juniper · last CVE Oct 14, 2026
On CISA KEVExploited in the wild
931
CVEs
8
On KEV
10.0
Max CVSS
141
New 30D
Severity mix
Critical 52High 392Medium 56Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2023-36851
In wildKEV
5.3
1%
Sep 26
Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files
Affected: 21.2 before 21.2R3-S8; 21.4 before 21.4R3-S6; 22.1 before 22.1R3-S5; 22.2 before 22.2R3-S3; 22.3 before 22.3R3-S2; 22.4 before 22.4R2-S2, 22.4R3; +1 more
CVE-2023-36846
In wildKEV
5.3
93%
Aug 17
Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files
Affected: before 20.4R3-S8; 21.1 before 21.1*; 21.2 before 21.2R3-S6; 21.3 before 21.3R3-S5; 21.4 before 21.4R3-S5; 22.1 before 22.1R3-S3; +3 more
CVE-2023-36844
In wildKEV
5.3
90%
Aug 17
Junos OS: EX Series: A PHP vulnerability in J-Web allows an unauthenticated attacker to control important environment variables
Affected: before 20.4R3-S9; 21.1 before 21.1*; 21.2 before 21.2R3-S6; 21.3 before 21.3R3-S5; 21.4 before 21.4R3-S5; 22.1 before 22.1R3-S4; +4 more
CVE-2023-36847
In wildKEV
5.3
83%
Aug 17
Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files
Affected: before 20.4R3-S8; 21.1 before 21.1*; 21.2 before 21.2R3-S6; 21.3 before 21.3R3-S5; 21.4 before 21.4R3-S4; 22.1 before 22.1R3-S3; +3 more
CVE-2025-21590
In wildKEV
4.4
2%
Mar 12
Junos OS: An local attacker with shell access can execute arbitrary code
Affected: before 21.2R3-S9; 21.4 before 21.4R3-S10; 22.2 before 22.2R3-S6; 22.4 before 22.4R3-S6; 23.2 before 23.2R2-S3; 23.4 before 23.4R2-S4; +1 more
Showing 5
The 500 most important CVEs for this product (exploited first, then by severity)