---
title: "CVE-2026-33796: Juniper Networks Junos OS - Remote Code Execution & Privilege Escalation"
description: "Juniper Networks Junos OS and Junos OS Evolved contain a stack-based buffer overflow caused by improper handling in the routing protocol daemon (rpd) during BMP route monitoring, letting configured external BGP neighbors execute arbitrary commands with root privileges, exploit requires configured external BGP neighbor."
url: https://panop.io/threat-heartbeat/CVE-2026-33796/
---

# CVE-2026-33796 Juniper Networks Junos OS - Remote Code Execution & Privilege Escalation

Juniper Networks Junos OS and Junos OS Evolved contain a stack-based buffer overflow caused by improper handling in the routing protocol daemon (rpd) during BMP route monitoring, letting configured external BGP neighbors execute arbitrary commands with root privileges, exploit requires configured external BGP neighbor.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-33796)

## Details

Type

Remote Code Execution

Impact

Remote Code Execution, Privilege Escalation

CVSS vector

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

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-121](https://cwe.mitre.org/data/definitions/121.html)

## Vendor fix

Update to the latest Junos OS and Junos OS Evolved versions with the fix applied.

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-2026-33796](https://nvd.nist.gov/vuln/detail/CVE-2026-33796)
- [https://supportportal.juniper.net/JSA112187](https://supportportal.juniper.net/JSA112187)

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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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