Vulnerability in Juniper Apstra
CVE-2025-13914
A Key Exchange without Entity Authentication vulnerability in the SSH implementation of Juniper Networks Apstra allows a unauthenticated, MITM attacker to impersonate managed devices. Due to insufficient SSH host key validation an attacker can perform a machine-in-the-middle attack on the SSH connections from Apstra to managed devices, enabling an attacker to impersonate a managed device and capture user credentials. This issue affects all versions of Apstra before 6.1.1.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Juniper Apstra
- Juniper Networks Apstra — versions 0
Weakness classification (CWE)
References
- kb.juniper.net/JSA107862 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-13914?
- CVE-2025-13914 is a high-severity vulnerability in Juniper Apstra, classified under Key Exchange without Entity Authentication. CVSS score: 8.7/10. Published 2026-04-09.
- How severe is CVE-2025-13914?
- High severity. CVSS v3 base score is 8.7 out of 10.