CVE-2026-102012 Junos OS Evolved: An attacker causes na-grpcd to crash when gRPC telemetry is enabled
Remote unauthenticated attackers can crash the na-grpcd process via gRPC telemetry requests, causing denial of service on Junos OS Evolved devices.
- 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-2026-102012?
CVE-2026-102012 is a high-severity denial of service vulnerability in Juniper Networks Junos OS Evolved, 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 na-grpcd process of Juniper Networks Junos OS Evolved allows a remote unauthenticated attacker to cause a denial of service via a gRPC telemetry subscription request.
Weakness: CWE-617
Which versions are affected by CVE-2026-102012?
How do I fix CVE-2026-102012?
No fix has been published for CVE-2026-102012 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-2026-102012 being exploited?
There is no known exploitation of CVE-2026-102012 in the wild and no public exploit code.
Sources
Also known as GHSA-q2xg-cw4x-rjww.