CVE-2026-102179 Junos OS and Junos OS Evolved: An attacker causes a routing daemon crash when BGP EVPN RIB telemetry is used
An attacker with BGP EVPN peer access can crash the routing daemon via out-of-bounds write when RIB telemetry is enabled, 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-2026-102179?
CVE-2026-102179 is a high-severity memory corruption 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 Out-of-bounds Write 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 EVPN peer to cause a denial of service via BGP EVPN route processing when the l2vpn-evpn RIB telemetry sensor is subscribed. Successful exploitation can crash rpd and interrupt routing protocols until the daemon restarts and reconverges.
Weakness: CWE-787
Which versions are affected by CVE-2026-102179?
How do I fix CVE-2026-102179?
No fix has been published for CVE-2026-102179 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-102179 being exploited?
There is no known exploitation of CVE-2026-102179 in the wild and no public exploit code.
Sources
Also known as GHSA-3rhf-56vm-wgqj.