How we count
Every figure on this page is a direct count of entries in CISA’s Known Exploited Vulnerabilities catalog attributed by CISA to Juniper (KEV field vendorProject), refreshed daily. “Ransomware-linked” counts entries CISA marks as known to be used in ransomware campaigns; the remainder are “unknown” to CISA, not confirmed ransomware-free. A KEV listing means the vulnerability has been observed exploited in the wild. Snapshot as of 2026-08-31.
Exploited Juniper vulnerabilities (CISA KEV)
| CVE | Product | Vulnerability | Added | |
|---|---|---|---|---|
| CVE-2015-7755 | ScreenOS | Juniper ScreenOS Improper Authentication Vulnerability | 2025-10-02 | |
| CVE-2025-21590 | Junos OS | Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability | 2025-03-13 | |
| CVE-2023-36844 | Junos OS | Juniper Junos OS EX Series PHP External Variable Modification Vulnerability | 2023-11-13 | |
| CVE-2023-36845 | Junos OS | Juniper Junos OS EX Series and SRX Series PHP External Variable Modification Vulnerability | 2023-11-13 | |
| CVE-2023-36846 | Junos OS | Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability | 2023-11-13 | |
| CVE-2023-36847 | Junos OS | Juniper Junos OS EX Series Missing Authentication for Critical Function Vulnerability | 2023-11-13 | |
| CVE-2023-36851 | Junos OS | Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability | 2023-11-13 | |
| CVE-2020-1631 | Junos OS | Juniper Junos OS Path Traversal Vulnerability | 2022-03-25 |
← All vendors by exploited-vulnerability count
🤖 Generated by defend.network from the CISA KEV catalog. Counts are deterministic aggregates of official CISA data; verify individual advisories at the linked sources.