CVE-2026-102054 Information disclosure in Junos OS
An unauthenticated adjacent attacker can read stale packet memory from the PFE via VXLAN overlay-ping traffic when EVPN-VXLAN is configured.
- 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-2026-102054?
CVE-2026-102054 is a medium-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 Improper Handling of Length Parameter Inconsistency vulnerability in L2ALM of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to obtain stale PFE packet memory via VXLAN overlay-ping traffic sent to a local VTEP.
Weakness: CWE-130
Which versions are affected by CVE-2026-102054?
How do I fix CVE-2026-102054?
No fix has been published for CVE-2026-102054 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-102054 being exploited?
There is no known exploitation of CVE-2026-102054 in the wild and no public exploit code.
Sources
Also known as GHSA-jv4q-w5hc-w74r.