Answer in brief
CVE-2026-103390 records a Medium severity (CVSS 5.3) vulnerability in Session Smart Router and Session Smart Conductor: A malformed HTTP URI causes a service crash during HTTP application identification. The current sources do not mark it as known exploited. The current feed maps Juniper Networks/Session Smart Conductor (generic), Juniper Networks/Session Smart Router (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Juniper Networks/Session Smart Conductor (generic), Juniper Networks/Session Smart Router (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Juniper Networks/Session Smart Conductorgeneric | >=0 <7.0.5 || >=7.1.0 <7.1.7 || >=7.2.0 <7.2.3 | 7.0.5, 7.1.7, 7.2.3 |
| Juniper Networks/Session Smart Routergeneric | >=0 <7.0.5 || >=7.1.0 <7.1.7 || >=7.2.0 <7.2.3 | 7.0.5, 7.1.7, 7.2.3 |
Published upstream
Oct 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 28, 2026
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.
Quoted source text, attributed separately from HOL analysis.