CVE-2026-102022 Junos OS and Junos OS Evolved: An attacker causes a routing-process crash when BGP-LS traffic-engineering is enabled
An attacker with BGP-LS peer access can crash the routing daemon via crafted advertisements, requiring BGP-LS traffic-engineering to be enabled.
- 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-2026-102022?
CVE-2026-102022 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
A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker with access to a configured BGP-LS peer to cause an rpd crash via a crafted BGP-LS Link NLRI advertisements.
Weakness: CWE-617
Which versions are affected by CVE-2026-102022?
How do I fix CVE-2026-102022?
No fix has been published for CVE-2026-102022 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-2026-102022 being exploited?
There is no known exploitation of CVE-2026-102022 in the wild and no public exploit code.
Sources
Also known as GHSA-47rh-39cx-88pg.