Vendor
Juniper Networks vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 16 vulnerabilities in Juniper Networks: 0 in the last 7 days and 8 in the last 90 days, 4 of them critical and 3 exploited in the wild. The most recent, CVE-2026-57029, was published on 9 July 2026. 1 technology has a page of its own.
- Last 7 days
- 0
- Last 90 days
- 8
- Critical, all time
- 4
- Exploited in the wild
- 3
About Juniper Networks
An American multinational corporation that develops and markets networking products.
Juniper Networks technologies
Latest Juniper Networks vulnerabilities
- CVE-2026-57029: Juniper Networks Junos OS Evolved DoS in flow collector handlermediumCVSS 5.3
- CVE-2026-57028: Juniper Networks Junos OS Evolved license exhaustion via open porthighCVSS 7.3
- CVE-2026-57025: Juniper Networks Junos OS DoS in fileio library via l2ald crashmediumCVSS 5.5
- CVE-2026-33803: Juniper Networks Junos OS Evolved improper communication restrictionmediumCVSS 6.5
- CVE-2026-33801: Juniper Networks Junos OS DoS in routing protocol daemonmediumCVSS 6.5
- CVE-2026-33799: Juniper Networks Junos OS out-of-bounds write in snmpdmediumCVSS 4.3
- CVE-2026-33794: Juniper Junos OS Evolved DoS in advanced forwarding toolkitmediumCVSS 5.9
- CVE-2026-21901: Juniper Networks Junos OS NULL pointer dereference in mgdmediumCVSS 4.4
- CVE-2026-33788: Juniper Junos OS Evolved auth bypass in Flexible PIC ConcentratorshighCVSS 7.8EPSS 0.1%
- CVE-2026-33784: Juniper Networks JSI vLWC use of default passwordcriticalCVSS 9.8EPSS 0.5%
- CVE-2026-33771: Juniper Networks CTP OS weak password requirements in password managementhighCVSS 7.4EPSS 0.3%
- CVE-2026-21915: Juniper Networks JSI vLWC privilege escalation in CLImediumCVSS 6.7EPSS 2.2%
- CVE-2025-13914: Juniper Networks Apstra MITM vulnerability in SSH implementationhighCVSS 8.7EPSS 0.3%
- CVE-2015-7755: Juniper ScreenOS improper authentication in SSH and Telnetcriticalexploited in the wildCVSS 9.8EPSS 85.2%
- CVE-2025-21590: Juniper Junos OS Improper Isolation or Compartmentalization Vulnerabilitycriticalexploited in the wildCVSS 6.7
- CVE-2020-1631: Juniper Junos OS Path Traversal Vulnerabilitycriticalexploited in the wildCVSS 9.8
Most severe Juniper Networks vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2015-7755: Juniper ScreenOS improper authentication in SSH and Telnetcriticalexploited in the wildCVSS 9.8EPSS 85.2%
- CVE-2020-1631: Juniper Junos OS Path Traversal Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2025-21590: Juniper Junos OS Improper Isolation or Compartmentalization Vulnerabilitycriticalexploited in the wildCVSS 6.7
- CVE-2026-33784: Juniper Networks JSI vLWC use of default passwordcriticalCVSS 9.8EPSS 0.5%
- CVE-2025-13914: Juniper Networks Apstra MITM vulnerability in SSH implementationhighCVSS 8.7EPSS 0.3%
- CVE-2026-33788: Juniper Junos OS Evolved auth bypass in Flexible PIC ConcentratorshighCVSS 7.8EPSS 0.1%
- CVE-2026-33771: Juniper Networks CTP OS weak password requirements in password managementhighCVSS 7.4EPSS 0.3%
- CVE-2026-57028: Juniper Networks Junos OS Evolved license exhaustion via open porthighCVSS 7.3
- CVE-2026-21915: Juniper Networks JSI vLWC privilege escalation in CLImediumCVSS 6.7EPSS 2.2%
- CVE-2026-33803: Juniper Networks Junos OS Evolved improper communication restrictionmediumCVSS 6.5
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 8 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/juniper-networks.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Juniper Networks vulnerabilities", https://junglewise.ai/threats/vendors/juniper-networks, 26 September 2026.