CVE-2026-103408
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductSession Smart Router
PublishedOct 28, 2026
First seenNov 6, 2026
Weakness typeCWE-121CWE-121
How to fix
Update
- Juniper Networks Session Smart Router7.0.5, 7.1.7, 7.2.3 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Juniper Networks Session Smart Router | v < 7.0.5, 7.1.0 ≤ v < 7.1.7, 7.2.0 ≤ v < 7.2.3 | 7.0.5, 7.1.7, 7.2.3 |
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