Vulnerability · Published Oct 28, 2026 · Assigned by juniper

CVE-2026-103390Session Smart Router and Session Smart Conductor: A malformed HTTP URI causes a service crash during HTTP application identification

Medium 5.3

In plain English

A medium-severity out-of-bounds read in Session Smart Conductor from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.4%top 62.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An Out-of-Bounds Read vulnerability in the HttpParser component in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to cause a denial of service via a specially crafted HTTP request.

Affected products (as reported)

VendorProductVersions
Juniper Networks Session Smart Router 0 – before 7.0.57.1.0 – before 7.1.77.2.0 – before 7.2.3
Juniper Networks Session Smart Conductor 0 – before 7.0.57.1.0 – before 7.1.77.2.0 – before 7.2.3

Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References