Juniper Junos vulnerabilities
791 published vulnerabilities in Juniper Junos, 8 of them exploited in the wild. The most were published in 2021 (113), and 50 so far in 2026.
Juniper Junos vulnerabilities by year
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Most exploited Juniper Junos vulnerabilities
- CVE-2023-36845 Juniper Junos OS EX Series and SRX Series PHP External Variable Modification
- CVE-2020-1631 Juniper Junos OS Path Traversal
- CVE-2015-5477 ISC BIND Data Processing Errors
- CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization
- CVE-2023-36851 Juniper Junos OS SRX Series Missing Authentication for Critical Function
- CVE-2023-36844 Juniper Junos OS EX Series PHP External Variable Modification
- CVE-2023-36846 Juniper Junos OS SRX Series Missing Authentication for Critical Function
- CVE-2023-36847 Juniper Junos OS EX Series Missing Authentication for Critical Function
- CVE-2021-0248 NFX Series: Hard-coded credentials allow an attacker to take control of any instance through administrative interfaces.
- CVE-2021-0211 Junos OS and Junos OS Evolved: Upon receipt of a specific BGP FlowSpec message network traffic may be disrupted.
- CVE-2020-1614 NFX250 Series: Hardcoded credentials in the vSRX VNF instance.
- CVE-2017-2343 SRX Series: Hardcoded credentials in Integrated UserFW feature.
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