Vulnerability in Juniper Networks Junos OS

CVE-2026-102051

An Improper Release of Memory Before Removing Last Reference vulnerability in the l2cpd process of Juniper Networks Junos OS and Junos OS Evolved platforms allows an adjacent unauthenticated attacker to cause l2cpd memory exhaustion and Layer 2 control-plane disruption via LLDP traffic when fast receive processing is enabled.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-102051?
CVE-2026-102051 is a medium-severity vulnerability in Juniper Networks Junos OS, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2026-10-14.
How severe is CVE-2026-102051?
Medium severity. CVSS v3 base score is 6.5 out of 10.