CVE-2026-103400 json
Session Smart Router and Session Smart Conductor: Crafted directory names cause arbitrary filesystem unmounting during service cleanup
published 12d ago modified 12d ago also EUVD-2026-112221
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 7%
- public exploits
- 0
- none known
Summary
An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the ember service in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with local access to unmount arbitrary filesystems or cause a denial of service via the creation of specially named directories and a service restart.
Patch / fix
- Juniper Networks Session Smart Router 7.0.5, 7.1.7, 7.2.3
- Juniper Networks Session Smart Conductor 7.0.5, 7.1.7, 7.2.3
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 12d ago
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Juniper Networks Session Smart Router
- Juniper Networks Session Smart Conductor
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
supportportal.juniper.net
/JSA112183
vendor-advisory
Sources
- CVE List CVE-2026-103400
- NVD CVE-2026-103400
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