Threat landscape
high

Juniper Session Smart Router: Mehrere Schwachstellen

WID-SEC-2026-4234 · first 29.10.2026 · updated 29.10.2026 · CVSS 9,8

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What it is about

Der Session Smart Router von Juniper ist eine Software-Defined Wide Area Network (SD-WAN)-Lösung, die eine tunnelfreie Architektur nutzt. Ein Angreifer kann mehrere Schwachstellen in Juniper Session Smart Router ausnutzen, um seine Privilegien zu erhöhen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren und um Sicherheitsvorkehrungen zu umgehen.

Under what conditions?

The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.

What can happen in the worst case

An attacker could use the vulnerability to

  • seine Privilegien zu erhöhen
  • beliebigen Programmcode auszuführen
  • einen Denial of Service Angriff durchzuführen
  • Informationen offenzulegen
  • Dateien zu manipulieren
  • Sicherheitsvorkehrungen zu umgehen

Am I affected?

Affected according to the BSI:

  • Juniper Session Smart Router <7.0.5
  • Juniper Session Smart Router <7.1.7
  • Juniper Session Smart Router <7.2.3

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

  • Juniper Session Smart Router 7.0.5
  • Juniper Session Smart Router 7.1.7
  • Juniper Session Smart Router 7.2.3

Is the vulnerability already being exploited?

None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.

Information and sources

CVE: CVE-2026-103390, CVE-2026-103391, CVE-2026-103392, CVE-2026-103393, CVE-2026-103394, CVE-2026-103400, CVE-2026-103401, CVE-2026-103402, CVE-2026-103403, CVE-2026-103404, CVE-2026-103405, CVE-2026-103406, CVE-2026-103407, CVE-2026-103408, CVE-2026-103409, CVE-2026-103410, CVE-2026-103411, CVE-2026-106079

Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.

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