CVE-2026-101963 Junos OS and Junos OS Evolved: A BGP EVPN neighbor causes an rpd crash when SRv6 multihoming is used
A remote BGP EVPN neighbor can crash the routing daemon in Juniper Junos OS when SRv6 multihoming is configured, causing denial of service.
- 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-2026-101963?
CVE-2026-101963 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 Incorrect Calculation vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos EVO allows a remote BGP EVPN neighbor to cause an rpd crash when SRv6 EVPN multihoming is configured.
Weakness: CWE-682
Which versions are affected by CVE-2026-101963?
How do I fix CVE-2026-101963?
No fix has been published for CVE-2026-101963 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-2026-101963 being exploited?
There is no known exploitation of CVE-2026-101963 in the wild and no public exploit code.
Sources
Also known as GHSA-qcwv-qpq7-m3r8.