CVE-2026-102018 Null dereference in Junos OS
An unauthenticated adjacent attacker can cause routing service disruption by sending malformed PIM Bidir messages when bidirectional PIM is enabled.
- 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-2026-102018?
CVE-2026-102018 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 rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial-of-service condition via a malformed PIM Bidir message.
Weakness: CWE-476
Which versions are affected by CVE-2026-102018?
How do I fix CVE-2026-102018?
No fix has been published for CVE-2026-102018 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-102018 being exploited?
There is no known exploitation of CVE-2026-102018 in the wild and no public exploit code.
Sources
Also known as GHSA-68q5-jp37-3wvp.