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CVE-2025-13914

Juniper Apstra vulnerability

8.7 HIGHEPSS 0.30%
  1. Published9 Apr 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Affected products

Juniper Apstra< 6.1.1

Remediation

Fixed in
Juniper Apstra≥ 6.1.1
Patch & vendor advisories

References

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Frequently asked

Is CVE-2025-13914 being actively exploited?

CVE-2025-13914 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.30%.

How severe is CVE-2025-13914?

CVE-2025-13914 has a CVSS 3.1 base score of 8.7, rated high. EPSS estimates a 0.30% probability of exploitation.

Which products are affected by CVE-2025-13914?

Affected products include Juniper Apstra.

How do I fix CVE-2025-13914?

Upgrade affected software to a fixed version, for example Juniper Apstra 6.1.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-13914 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.