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CVE-2026-33791

8.4 high SSVC exploitation: none Modified
NVD · CVE.org

An OS Command Injection vulnerability in the CLI processing of Juniper Networks Junos OS and Junos OS Evolved allows a local, high-privileged attacker executing specific, crafted CLI commands to inject arbitrary shell commands as root, leading to a complete compromise of the system. Certain 'set system' commands, when executed with crafted arguments, are not properly sanitized, allowing for arbitrary shell injection. These shell commands are executed as root, potentially allowing for complete control of the vulnerable system. This issue affects: Junos OS: * all versions before 22.4R3-S8, * from 23.2 before 23.2R2-S5, * from 23.4 before 23.4R2-S7, * from 24.2 before 24.2R2-S2, * from 24.4 before 24.4R2, * from 25.2 before 25.2R2; Junos OS Evolved: * all versions before 22.4R3-S8-EVO, * from 23.2 before 23.2R2-S5-EVO, * from 23.4 before 23.4R2-S7-EVO, * from 24.2 before 24.2R2-S2-EVO, * from 24.4 before 24.4R2-EVO, * from 25.2 before 25.2R1-S1-EVO, 25.2R2-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 8.4 · juniperNVD modified 2026-10-26 22:10

Affected (CPE criteria) 98

  • cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r3-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r3-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r3-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r3-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r3-s5:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r3-s6:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:22.4:r3-s7:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.2:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.2:r2-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.2:r2-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:r2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:r2-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:r2-s2:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:r2-s3:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:r2-s4:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:r2-s5:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:23.4:r2-s6:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:24.2:-:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:24.2:r1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:24.2:r1-s1:*:*:*:*:*:*
  • cpe:2.3:o:juniper:junos:24.2:r1-s2:*:*:*:*:*:*
  • and 58 more

References 2