CVE-2026-103390 | BDVDB-2026-397049 Detail

Juniper NetworksSession Smart Router

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.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact low. Attack vector: network.

Weaknesses#

CWE-125 Out-of-bounds Read

References#

https://supportportal.juniper.net/JSA112183

Exploit#

No public exploit known

History#

Version 12026-10-28Record published in the CVE List.
Version 22026-10-29Most recent update recorded in the CVE List.

Published

Published: 2026-10-28
Last modified: 2026-10-29

Vendor information

Vendor: Juniper Networks
Product: Session Smart Router

All Juniper Networks vulnerabilities

Score

5.3 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 37.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 7.0.5
Fixed
7.0.5
Vulnerable
>= 7.1.0 and < 7.1.7
Fixed
7.1.7
Vulnerable
>= 7.2.0 and < 7.2.3
Fixed
7.2.3

Scoring System

CVSS v4.0

Not available

CVSS v3.1

5.3 Medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).