CVE-2026-102011: Junos OS and Junos OS Evolved: An attacker causes rpd to crash when LDP link protection is enabled

Published Oct 14, 2026

Updated

A Reachable Assertion vulnerability in the rpd process of Juniper Networks Junos OS and Junos EVO allows an adjacent attacker to cause a denial of service via an established LDP session when two misconfigured neighbors (or one neighbor duplicated by an L2 loop) advertise the same transport address on a link-protected interface.

Affected Software

2 affected components

Juniper Networks Junos OS

Juniper Networks Junos OS Evolved

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 23.2R2-S7.7-EVO
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Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 23.4R2-S8.11-EVO
Upgrade
Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 24.2R2-S5.6-EVO
Upgrade
Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 24.4R2-S5-EVO
Upgrade
Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 25.2R2-S2-EVO
Upgrade
Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 25.2X100-D35-EVO
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Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 25.4R1-S3-EVO
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Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 25.4R2-EVO
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Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 25.4X300-D40-EVO
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Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 26.2R1-S2-EVO
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Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 26.2R2-EVO
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Upgrade Juniper Junos OS Evolved to a version that resolves this vulnerability.
Fixed in 26.4R1-EVO
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Upgrade Juniper Junos OS to a version that resolves this vulnerability.
Fixed in 23.2R2-S7.7
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Fixed in 23.4R2-S8.13
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Upgrade Juniper Junos OS to a version that resolves this vulnerability.
Fixed in 24.2R2-S5.5
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Upgrade Juniper Junos OS to a version that resolves this vulnerability.
Fixed in 24.4R2-S5
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Upgrade Juniper Junos OS to a version that resolves this vulnerability.
Fixed in 25.2R2-S2
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Upgrade Juniper Junos OS to a version that resolves this vulnerability.
Fixed in 25.4R1-S3
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Upgrade Juniper Junos OS to a version that resolves this vulnerability.
Fixed in 25.4R2
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Fixed in 26.2R1-S2
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Upgrade Juniper Junos OS to a version that resolves this vulnerability.
Fixed in 26.2R2
Upgrade
Upgrade Juniper Junos OS to a version that resolves this vulnerability.
Fixed in 26.4R1

Event History

Oct 14, 2026

CVE Published

via MITRE·04:44 PM

Data Sourced

via MITRE·04:44 PM

RemedyDescriptionSeverityWeakness

Frequently Asked Questions

What conditions are required for exploitation?

The attacker must be adjacent and use an established LDP session. LDP link protection must be enabled on the affected interface, and two misconfigured neighbors—or one neighbor duplicated through an L2 loop—must advertise the same transport address.

Does an attacker need credentials or user interaction?

No. The vector is adjacent-network access, with low attack complexity, no privileges required, and no user interaction required.

What is the operational impact?

Successful exploitation can crash the rpd process, causing a denial of service. The provided data indicates no confidentiality or integrity impact.