CVE-2026-102014: Juniper Networks Junos OS stack buffer overflow in authd

CVE-2026-102014 · Severity: high · CVSS 8.8 · Published 2026-10-14

Junos OS is a network operating system used in Juniper routers and switches to manage enterprise and service provider networks. A vulnerability in the authd authentication process allows an attacker controlling a RADIUS server to crash the system or gain root-level code execution by sending a malicious response. This could lead to network outages or complete system compromise.

Technologies: Juniper Networks Junos OS. Vendors: Juniper Networks.

Quick answers

Is CVE-2026-102014 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-102014 being exploited in the wild.
How severe is CVE-2026-102014?
High severity, with a CVSS score of 8.8, published 14 October 2026.
Which products and versions are affected?
Juniper Networks Junos OS.
Is there a fix for CVE-2026-102014?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-102014 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2026-102014?
Check whether you run Juniper Networks Junos OS. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stack-based buffer overflow exists in the authd process of Junos OS when processing RADIUS server responses. An attacker with the ability to influence or control a configured RADIUS authentication server can send a specially crafted RADIUS response to trigger the overflow, resulting in denial of service or remote code execution with root privileges.

Affected products

  • Juniper Networks Junos OS

Timeline

  • 2026-10-14: disclosed

References

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