ACTIVELY EXPLOITED
CVE-2020-1631: Juniper Junos OS Path Traversal Vulnerability
| Vendor | Juniper |
|---|---|
| Product | Junos OS |
| Actively exploited | Yes |
| Added to CISA KEV | 25 Mar 2022 |
| CISA federal deadline | 15 Apr 2022 |
| Weakness (CWE) | CWE-22, CWE-73 |
Required action (CISA's text)
Apply updates per vendor instructions.
Description (NVD)
A path traversal vulnerability in the HTTP/HTTPS service used by J-Web, Web Authentication, Dynamic-VPN (DVPN), Firewall Authentication Pass-Through with Web-Redirect, and Zero Touch Provisioning (ZTP) allows an unauthenticated attacker to perform remote code execution.
SOURCES
Other Juniper flaws
- CVE-2015-7755: Juniper ScreenOS Improper Authentication Vulnerability
- CVE-2025-21590: Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability
- CVE-2023-36851: Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability
- CVE-2023-36847: Juniper Junos OS EX Series Missing Authentication for Critical Function Vulnerability
- CVE-2023-36846: Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.