# CVE-2026-103407: Session Smart Router and Session Smart Conductor: Unsanitized input allows arbitrary file read, overwrite, or deletion via the PKI management

Status: published. Published: 2026-10-28. Updated: 2026-11-08.

An Improper Limitation of a Pathname to a Restricted Directory vulnerability in ConfigDirector in Juniper Networks Session Smart Router and Session Smart Conductor allows an authenticated REST user to read, overwrite, or delete arbitrary certificate and key files on the host filesystem via the certificate and private-key REST API.

## Remediation

- fix: The following software releases of Session Smart Router and Session Smart Conductor have been updated to resolve these specific issues:
  *  7.0.5 

and all subsequent releases;
  *  7.1.7 

and all subsequent releases;
  *  7.2.3 and all subsequent releases. (source: CNA: juniper)
- workaround: There are no known workarounds for this issue. (source: CNA: juniper)

## Affected products and versions

- Juniper Networks / Session Smart Router: ≥ 0; < 7.0.5 (affected, custom); ≥ 7.1.0; < 7.1.7 (affected, custom); ≥ 7.2.0; < 7.2.3 (affected, custom). Source: CNA: juniper
- Juniper Networks / Session Smart Conductor: ≥ 0; < 7.0.5 (affected, custom); ≥ 7.1.0; < 7.1.7 (affected, custom); ≥ 7.2.0; < 7.2.3 (affected, custom). Source: CNA: juniper

## Severity and prioritization

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: juniper

- CISA KEV: No listing in collected sources

- EPSS: 0.23% as of 2026-11-08; percentile 13.80%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-22

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://supportportal.juniper.net/JSA112183 (CNA: juniper; vendor-advisory)

## Provenance

- CNA: juniper: https://www.cve.org/CVERecord?id=CVE-2026-103407; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-103407; retrieved 2026-11-08; source updated Not reported

Revision: 3d0a216ad944cc712235e9e1bffb5e660b2152f2682ad87c6a4b2c982e9ba79f

Canonical: https://y2.dev/cve/CVE-2026-103407

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