October 2, 2025 · Applied Cybernetics Group
CVE-2015-7755 — Juniper ScreenOS
Juniper ScreenOS Improper Authentication Vulnerability
- Added to KEV
2025-10-02- Federal due date
2025-10-23- Vendor
- Juniper
- Product
- ScreenOS
- EPSS
- 99.1th percentile (score 0.614, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2015-7755
CISA short description
Juniper ScreenOS contains an improper authentication vulnerability that could allow unauthorized remote administrative access to the device.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.