Session Smart Router: Insufficient Verification of Data Authenticity
CVE-2026-103402 is a high-severity insufficient verification of data authenticity vulnerability in Session Smart Router from Juniper Networks, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists versions 7.0.5, 7.1.7, 7.2.3 as the first without the flaw, so updating Session Smart Router to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.2% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Session Smart Router to 7.0.5 or 7.1.7 or 7.2.3, whichever matches your release line, or a later version.
- Update Session Smart Conductor to 7.0.5 or 7.1.7 or 7.2.3, whichever matches your release line, or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Juniper Networks | Session Smart Router | before 7.0.5; 7.1.0 up to, but not including, 7.1.7; 7.2.0 up to, but not including, 7.2.3 | 7.0.5, 7.1.7, 7.2.3 |
| Juniper Networks | Session Smart Conductor | before 7.0.5; 7.1.0 up to, but not including, 7.1.7; 7.2.0 up to, but not including, 7.2.3 | 7.0.5, 7.1.7, 7.2.3 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (juniper.net).
Official description
An Insufficient Verification of Data Authenticity vulnerability in PCLI in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with write access to the model cache directory to execute arbitrary code and escalate privileges via the processing of unverified cache files.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insufficient Verification of Data Authenticity
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
More Insufficient Verification of Data Authenticity vulnerabilities (CWE-345)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in Session Smart Router
- 8.8 High severity
- 7.1 High severity
- 7.5 High severity
- 9.8 Critical severity
- 8.8 High severity
- 8.8 High severity
Recent Insufficient Verification of Data Authenticity vulnerabilities
- 9.1 Critical severity
- 7.5 High severity
- 8.2 High severity
- 7.5 High severity
- 8.8 High severity
- 7.5 High severity
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