Buffer overflow in Juniper Networks Session Smart Router
CVE-2026-103408
A Stack Buffer Overflow vulnerability in the DHCP client in Juniper Networks Session Smart Router allows an unauthenticated attacker on the local network to achieve remote code execution via a malicious DHCP reply.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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
- supportportal.juniper.net/JSA112183 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-103408?
- CVE-2026-103408 is a high-severity vulnerability in Juniper Networks Session Smart Router, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-10-28.
- How severe is CVE-2026-103408?
- High severity. CVSS v3 base score is 8.8 out of 10.