CVE-2025-13914: A Key Exchange without Entity Authentication vulnerability in the SSH implementation of Juniper Networks Apstr

Q: How do I fix CVE-2025-13914?

apstra: upgrade to 6.1.1. Exact commands for each OS are on this page.

Q: Is CVE-2025-13914 being exploited?

CVE-2025-13914 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-13914 affect?

CVE-2025-13914 affects apstra. Severity is high (CVSS 8.7). 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 attack

Q: How urgent is CVE-2025-13914?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 8.7REMOTEUPGRADE

CVE-2025-13914 is a high-severity flaw (CVSS 8.7) affecting apstra. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 ve

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.7 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-322
Published	2026-04-09
Last modified	2026-10-07

Publisher (CNA): Juniper Networks, Inc. · Vendor: juniper

Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-09 22:16 UTCPublished CVE record published
2026-10-07 09:10 UTCUpdated Record last modified

juniper apstra UPGRADE

Affected: < 6.1.1

Fixed in: 6.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy apstra || rpm -q apstra || apstra --version

2. UPGRADE to 6.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade apstra

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade apstra

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-13914?

apstra: upgrade to 6.1.1. Exact commands for each OS are on this page.

Is CVE-2025-13914 being exploited?

CVE-2025-13914 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-13914 affect?

CVE-2025-13914 affects apstra. Severity is high (CVSS 8.7). 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 attack

How urgent is CVE-2025-13914?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

Software pages

Juniper Junos vulnerabilities

References

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