Out-of-bounds Read in Juniper Networks Junos OS
CVE-2026-102056
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.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/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)
References
- supportportal.juniper.net/JSA112187 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-102056?
- CVE-2026-102056 is a high-severity vulnerability in Juniper Networks Junos OS, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2026-10-14.
- How severe is CVE-2026-102056?
- High severity. CVSS v3 base score is 7.1 out of 10.