CVE-2026-103408 json
Session Smart Router: An attacker-controlled input causes remote code execution when parsing DHCP options
published 2026-10-28 11 d ago modified 2026-11-06 2 d ago also EUVD-2026-112213
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
A Stack Buffer Overflow vulnerability in the DHCP client in Juniper Networks Session Smart Router allows an unauthenticated attacker on the local network to achieve remote code execution via a malicious DHCP reply.
Patch / fix
- Juniper Networks Session Smart Router 7.0.5, 7.1.7, 7.2.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 d ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Juniper Networks Session Smart Router
Classification
- Weakness
-
- CWE-121 Stack-based Buffer Overflow
References
-
supportportal.juniper.net
/JSA112183
vendor-advisory
Sources
- CVE List CVE-2026-103408
- NVD CVE-2026-103408
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