CVE-2026-101946 Junos OS and Junos OS Evolved: An attacker causes rpd process memory disclosure when IPv6 LDP is used

Medium 5.3 Published Updated

An adjacent attacker can disclose rpd process memory and disrupt LDP adjacency via IPv6 LDP messages in Junos OS.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-101946?

CVE-2026-101946 is a medium-severity vulnerability in Juniper Networks Junos OS, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An Out-of-bounds Read vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent low-privilege attacker to disclose limited rpd process memory and disrupt an LDP adjacency via an IPv6 LDP message.

Weakness: CWE-125

Which versions are affected by CVE-2026-101946?

How do I fix CVE-2026-101946?

No fix has been published for CVE-2026-101946 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-101946 being exploited?

There is no known exploitation of CVE-2026-101946 in the wild and no public exploit code.

Sources

Also known as GHSA-2xw5-qx9c-88xf.

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