CVE-2026-103409

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A Missing authentication for critical function vulnerability in Juniper Networks Session Smart Router allows an unauthenticated network-based attacker to obtain administrative privileges by passing crafted URL parameters to an insecure endpoint running as root. Note that this vulnerability can only be exploited prior to the device being onboarded to Mist/Conductor. The issue can no longer be exploited once a device is onboarded to Mist/Conductor.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-306

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Peaked 1d ago at 1 mentions (2026-10-28); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-10-28: 1Mentions · 2026-10-29: 110-2810-29
Referenced assets11 URLs
Full discourse2 posts
  • Daily CyberSecurity@Daily_CyberSec

    Juniper security bulletin fixes 18 Session Smart Router vulnerabilities, including CVSS 9.8 flaws CVE-2026-103406 and CVE-2026-103409. Update now. #Juniper #SessionSmartRouter #SDWAN #CVE2026103406 #CVE2026103409 #NetworkSecurity #PatchNow #Vulnerability https://securityonline.info/juniper-session-smart-router-vulnerabilities/

    02011389
    13.1K followersView on X
  • 테크워처@TheHour2359

    출처 - Jenkins — 2026년 10월 28일 보안 권고 https://www.jenkins.io/security/advisory/2026-10-28/ - Juniper — Session Smart Router·Conductor 보안 권고 JSA112183 https://supportportal.juniper.net/s/article/2026-10-On-Demand-Security-Bulletin-Session-Smart-Router-and-Session-Smart-Conductor-Multiple-internally-discovered-vulnerabilities-resolved - Sophos — CVE-2026-118633 https://www.sophos.com/en-us/security-advisories/sophos-sa-20261028-utm-rce - WordPress — 7.1.4 보안 릴리스 https://wordpress.org/news/2026/10/wordpress-7-1-4/ 실제 악용 취약점 및 종합 자료 - CISA — Known Exploited Vulnerabilities Catalog https://www.cisa.gov/known-exploited-vulnerabilities-catalog - http://pwn.watch — 보안 취약점·사고 모니터링 https://pwn.watch/ - http://pwn.watch — Jenkins 보안 권고 요약 https://pwn.watch/i/jenkins-core-security-advisory-2026-10-28 - http://pwn.watch — Juniper 취약점 요약 https://pwn.watch/i/juniper-session-smart-router-cve-2026-103409 - http://pwn.watch — Sophos UTM 취약점 요약 https://pwn.watch/i/sophos-utm-email-proxy-preauth-rce-cve-2026-118633

    0000042
    2.1K followersView on X

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