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Junos OS — security advisories

vendor: Juniper8 advisories7 exploited2 sourceslatest 2026-07-09⚡ RSS feed

Every advisory CSIRTS.com has correlated to Junos OS, newest first — across national CERTs, vendor PSIRTs and vulnerability databases.

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Juniper Junos OS Multiple Vulnerabilities

unknownCVE-2020-7450 CVE-2026-21901 CVE-2026-33794 CVE-2026-33799hkcert2026-07-09

CVE-2025-21590: Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability

criticalexploitedCVE-2025-21590cisa-kev2025-03-13

CVE-2023-36851: Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability

criticalexploitedCVE-2023-36851cisa-kev2023-11-13

CVE-2023-36845: Juniper Junos OS EX Series and SRX Series PHP External Variable Modification Vulnerability

criticalexploitedCVE-2023-36845cisa-kev2023-11-13

CVE-2023-36847: Juniper Junos OS EX Series Missing Authentication for Critical Function Vulnerability

criticalexploitedCVE-2023-36847cisa-kev2023-11-13

CVE-2023-36844: Juniper Junos OS EX Series PHP External Variable Modification Vulnerability

criticalexploitedCVE-2023-36844cisa-kev2023-11-13

CVE-2023-36846: Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability

criticalexploitedCVE-2023-36846cisa-kev2023-11-13

CVE-2020-1631: Juniper Junos OS Path Traversal Vulnerability

criticalexploitedCVE-2020-1631cisa-kev2022-03-25

Junos OS security advisories · CSIRTS