CVE-2026-102176: Juniper Junos buffer overflow in SDK service process

CVE-2026-102176 · Severity: high · CVSS 8.8 · Published 2026-10-14

A buffer overflow vulnerability in the SDK service process of Juniper Junos OS, the operating system used in network routing equipment, allows an unauthenticated network attacker to crash the routing engine or potentially take control of it. The vulnerability requires the SDK service and JDAF routing instance to be enabled. An exploit could cause network outages or allow attackers to compromise critical routing infrastructure.

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

Quick answers

Is CVE-2026-102176 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-102176 being exploited in the wild.
How severe is CVE-2026-102176?
High severity, with a CVSS score of 8.8, published 14 October 2026.
Which products and versions are affected?
Juniper Networks Junos OS <UNKNOWN>.
Is there a fix for CVE-2026-102176?
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-2026-102176 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2026-102176?
Check whether you run Juniper Networks Junos OS at an affected version. 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 classic buffer overflow in the SDK service process allows unauthenticated network attackers to send specially crafted packets that overflow a buffer when the SDK service and JDAF routing instance are both enabled. The overflow can lead to denial of service (routing engine crash) or remote code execution with routing engine privileges. No authentication or user interaction is required.

Affected products

  • Juniper Networks Junos OS <UNKNOWN>

Timeline

  • 2026-10-14: disclosed

References

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