CVE-2026-103411

Session Smart Router: A malicious DHCP server causes information disclosure and a service crash during DHCP option parsing

HIGH

7.1

CVSS Score

Published: October 28, 2026 at 04:37 PM UTC

Updated: October 28, 2026 at 05:17 PM UTC

1 product affected across 1 vendorSession Smart Router

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Severity

HIGH7.1

Exploit prediction

EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Session Smart Router · Juniper Networks

90%

7.1.0 7.2.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://supportportal.juniper.net/JSA112183

References (1)

Vendor Advisory

Source: cverecord

https://supportportal.juniper.net/JSA112183

CVSS

7.1HIGHjuniper

Attack Vector: ADJACENT_NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-191

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