CVE-2025-13914
Apstra: SSH host key validation vulnerability for managed devices
- State
- Published
- Severity
- 7.0 High
- Published
- Apr 9, 2026
- Updated
- Apr 14, 2026
- Reserved
- Dec 2, 2025
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.0 High | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/R:U/RE:M | juniper |
| 3.1 | 8.7 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N | juniper |
Weaknesses
- CWE-322 Key Exchange without Entity Authentication
Affected Products
| Product | Versions |
|---|---|
ApstraJuniper Networks |
|
References
- https://kb.juniper.net/JSA107862vendor-advisory
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