CVE-2026-102056 Information disclosure in Junos OS
An unauthenticated adjacent attacker can crash the CFM daemon and read memory via crafted messages when Ethernet CFM is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102056?
CVE-2026-102056 is a high-severity vulnerability in Juniper Networks Junos OS, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An Out-of-bounds Read vulnerability in the cfmd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent-network attacker to crash the daemon and disclose limited process memory via a specific CFM Message sent to a configured interface.
Weakness: CWE-125
Which versions are affected by CVE-2026-102056?
How do I fix CVE-2026-102056?
No fix has been published for CVE-2026-102056 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-102056 being exploited?
There is no known exploitation of CVE-2026-102056 in the wild and no public exploit code.
Sources
Also known as GHSA-94gq-f9p5-6v8v.