What’s Vulnerable › Vulnerabilities
CVE-2026-103411: Session Smart Router: A malicious DHCP server causes information disclosure and a service crash during DHCP option parsing
- Severity: high (CVSS 7.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-28 · updated 2026-10-28
- Weakness: CWE-191
Description
An Integer Underflow vulnerability in DhcpMessageDecoder in Juniper Networks Session Smart Router allows an attacker with local network access to cause information disclosure and a denial of service via a malicious DHCP reply.
Affected products
- Juniper Networks Session Smart Router: before 7.0.5; from 7.1.0 before 7.1.7; from 7.2.0 before 7.2.3 — fixed in 7.0.5, 7.1.7, 7.2.3
How to fix
Upgrade to a fixed version: Juniper Networks Session Smart Router 7.0.5, 7.1.7, 7.2.3. Check the vendor advisory for mitigations.
References
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