Juniper Session Smart Updates Fix 18 Security Flaws

P1 — VALIDATE AND UPDATELow to Critical · 3.7-9.8 (CVSS v3.1)EXPLOITATION: NOT STATED

Quick Answer

Juniper JSA112183 fixes 18 vulnerabilities in Session Smart Router and Conductor. Inventory exact branches and management exposure, update to 7.0.5, 7.1.7, or 7.2.3 as applicable, validate routing and administration, review exposed systems where warranted, and retain evidence.

Confirm Scope And Apply The Supported Remediation

What to do now: Inventory Session Smart Routers and Conductors, exact software branches, management and provisioning exposure, TCP proxy, DHCP, VRRP, PKI and audit features, owners, HA pairs, and maintenance windows. Match each device role and feature to the individual CVE record; do not assume every Router or Conductor is exposed to every flaw, and do not infer compromise from severity alone. Install Juniper's fixed maintenance release for the deployed branch: 7.0.5, 7.1.7, or 7.2.3. Restrict management and provisioning paths while rollout is pending. Confirm the running release, test control-plane access, routing, HA, DHCP, PKI and policy workflows, review relevant system and administration logs on exposed devices, and retain software and change evidence.

Open the authoritative advisory

Last verified: 2026-10-29 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.

Scope And Authority

Product scopeJuniper Session Smart Router and Session Smart Conductor
AdvisoryJSA112183
CVEsCVE-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
Authoritative release date2026-10-28 16:33:16.471 UTC
Authority revision date2026-10-29 01:52:04.374 UTC
Affected versionsSession Smart Router and Conductor releases before 7.0.5, 7.1.7, and 7.2.3 as identified per CVE; some issues affect only Router or only Conductor.
Fixed versionJuniper Session Smart 7.0.5, 7.1.7, or 7.2.3 on the corresponding maintained branch
CVSS base score3.7-9.8 (CVSS v3.1)
CVSS severityLow to Critical
Exploitation statusJuniper describes the issues as internally discovered and does not state that they are being maliciously exploited.; no exploitation claim is inferred.

What Changed

Juniper published JSA112183 with 18 internally discovered vulnerabilities, including unauthenticated command execution, authentication bypass, file access, privilege escalation, memory-safety faults, and denial of service.

What To Validate Now

  1. Inventory. Inventory Session Smart Routers and Conductors, exact software branches, management and provisioning exposure, TCP proxy, DHCP, VRRP, PKI and audit features, owners, HA pairs, and maintenance windows.
  2. Establish applicability. Match each device role and feature to the individual CVE record; do not assume every Router or Conductor is exposed to every flaw, and do not infer compromise from severity alone.
  3. Remediate. Install Juniper's fixed maintenance release for the deployed branch: 7.0.5, 7.1.7, or 7.2.3. Restrict management and provisioning paths while rollout is pending.
  4. Validate. Confirm the running release, test control-plane access, routing, HA, DHCP, PKI and policy workflows, review relevant system and administration logs on exposed devices, and retain software and change evidence.
  5. Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.

Operational Cautions

The batch combines unauthenticated network paths with authenticated and local paths. Network updates can interrupt routing and orchestration, so stage failover and rollback without delaying exposure reduction.

Evidence To Retain

  • Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
  • UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
  • Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.

Related TechGeeks Resources

Authoritative References

Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.