---
title: "CVE-2026-102176: Juniper Networks Junos OS - Buffer Overflow"
description: "Juniper Networks Junos OS contains a buffer overflow caused by unchecked buffer copy in the SDK service process, letting unauthenticated network attackers cause denial of service or compromise the Routing Engine, exploit requires SDK service and JDAF routing instance enabled."
url: https://panop.io/threat-heartbeat/CVE-2026-102176/
---

# CVE-2026-102176 Juniper Networks Junos OS - Buffer Overflow

Juniper Networks Junos OS contains a buffer overflow caused by unchecked buffer copy in the SDK service process, letting unauthenticated network attackers cause denial of service or compromise the Routing Engine, exploit requires SDK service and JDAF routing instance enabled.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-102176)

## Details

Type

Buffer Overflow

Impact

Denial Of Service, Remote Code Execution

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-120](https://cwe.mitre.org/data/definitions/120.html)

## Vendor fix

Update to the latest Junos OS version with the vulnerability fixed.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-102176](https://nvd.nist.gov/vuln/detail/CVE-2026-102176)
- [https://supportportal.juniper.net/JSA112188](https://supportportal.juniper.net/JSA112188)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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