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CVE-2026-33803

6.9 medium SSVC exploitation: none Analyzed
NVD · CVE.org

An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited information disclosure and availability impact to the device. Due to a wrong initialization, a process which should only be able to communicate internally within the device can be reached over the network via an open port. This leads to a device being inadvertently exposed and increased CPU cycles spent processing ingress packets. This issue affects Junos OS Evolved: * all versions before 23.2R2-S7-EVO, * 23.4 versions before 23.4R2-S8-EVO, * 24.2 versions before 24.2R2-S5-EVO, * 24.4 versions before 24.4R2-S4-EVO, * 25.2 versions before 25.2R2-S1-EVO, * 25.4 versions before 25.4R1-S2-EVO.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 6.9 · juniperNVD modified 2026-10-25 17:10

Affected (CPE criteria) 48

  • cpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:r2-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:r2-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:r2-s5:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:r2-s6:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r1-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s5:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s6:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s7:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.2:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.2:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.2:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.2:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.4:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.4:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.4:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.4:r1-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.4:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.4:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.4:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos_os_evolved:24.4:r2-s3:*:*:*:*:*:*
  • and 8 more

References 1