Vulnerability in Juniper Networks Junos OS

CVE-2026-102053

An Improper Release of Memory Before Removing Last Reference vulnerability in the l2ald process of Juniper Networks Junos OS and Junos OS Evolved on QFX5K-family platforms allows a configured EVPN peer to cause a denial of service through memory exhaustion via EVPN-VXLAN active-active multihoming route processing.

Published .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

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-2026-102053?
CVE-2026-102053 is a medium-severity vulnerability in Juniper Networks Junos OS, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.3/10. Published 2026-10-14.
How severe is CVE-2026-102053?
Medium severity. CVSS v3 base score is 5.3 out of 10.