CVE-2026-101988 Junos OS and Junos OS Evolved: An unauthenticated adjacent attacker causes an rpd crash when LDP is enabled
An unauthenticated adjacent attacker can crash the routing daemon via LDP messages, causing denial of service on Juniper devices.
- 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-2026-101988?
CVE-2026-101988 is a high-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
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via LDP messages received over an operational LDP session.
Weakness: CWE-476
Which versions are affected by CVE-2026-101988?
How do I fix CVE-2026-101988?
No fix has been published for CVE-2026-101988 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-101988 being exploited?
There is no known exploitation of CVE-2026-101988 in the wild and no public exploit code.
Sources
Also known as GHSA-mhg9-x642-cgj6.