CVE-2026-103392
Session Smart Router: A SACK option causes out-of-bounds memory access and TCP payload corruption when TCP sequence stitching is enabled
MEDIUM 4.8
At a glance
- Source
- CVE.org
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
Description
An Out-of-Bounds Write vulnerability in the TCP header processing in Juniper Networks Session Smart Router allows an attacker to corrupt TCP payload data and potentially cause session desynchronization via a transit TCP packet with an oversized SACK option length.
Weaknesses (CWE)
- CWE-787 — Out-of-bounds Write
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L | juniper |
European references
- ENISA EUVD · EUVD-2026-112224
- GCVE · GCVE-0-2026-103392
CERT-FR advisories
- CERTFR-2026-AVI-1414 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Session Smart Router | affected 0 < 7.0.5 ; affected 7.1.0 < 7.1.7 ; affected 7.2.0 < 7.2.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |