CVE-2026-102016 Junos OS and Junos OS Evolved: An attacker causes a routing outage when BGP MVPN signaling is enabled
A remote attacker can cause a routing outage by sending malicious BGP MVPN signaling updates to a configured peer.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102016?
CVE-2026-102016 is a high-severity denial of service vulnerability in Juniper Networks Junos OS, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An Improper Validation of Specified Quantity in Input vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP MVPN peer to cause a denial of service via a BGP MVPN signaling update.
Weakness: CWE-1284
Which versions are affected by CVE-2026-102016?
How do I fix CVE-2026-102016?
No fix has been published for CVE-2026-102016 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-102016 being exploited?
There is no known exploitation of CVE-2026-102016 in the wild and no public exploit code.
Sources
Also known as GHSA-x4q2-3m7h-pxgh.