What is CVE-2026-102047?

CVE-2026-102047 is a medium-severity vulnerability in Juniper Networks Junos OS, classified under CWE-1288. CVSS score: 6.5/10. Published 2026-10-14.

How severe is CVE-2026-102047?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Juniper Networks Junos OS

CVE-2026-102047

An Improper Validation of Consistency within Input vulnerability in the l2cpd process of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated Layer 2 attacker to cause a denial of service in associated Layer 2 control protocols via a crafted MVRP Ethernet frame sent to an MVRP-enabled interface.

Published 2026-10-14 · last modified 2026-10-14.

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

Juniper Networks Junos OS
Juniper Networks Junos OS Evolved — versions 23.4X100

Weakness classification (CWE)

CWE-1288

References

supportportal.juniper.net/JSA112187 (vendor-advisory)

Frequently asked questions

What is CVE-2026-102047?: CVE-2026-102047 is a medium-severity vulnerability in Juniper Networks Junos OS, classified under CWE-1288. CVSS score: 6.5/10. Published 2026-10-14.
How severe is CVE-2026-102047?: Medium severity. CVSS v3 base score is 6.5 out of 10.