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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-102055

Junos OS and Junos OS Evolved: MX Series, PTX Series: An attacker causes remote code execution and denial of service when enhanced CFM is enabled

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Status
Published
Published
Updated
Assigning organization
juniper

Description

A Stack-based Buffer Overflow vulnerability in the cfmd process of Juniper Networks Junos OS on MX Series and Junos OS Evolved on PTX Series platforms allows an unauthenticated adjacent-network attacker to execute arbitrary code as root or cause denial of service via a specific CFM Message sent to a configured down-MEP with enhanced CFM mode enabled.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Juniper Networks Junos OS

Default version status: unaffected

  • 0 to < 23.2R2-S7.7affected
  • 23.4 to < 23.4R2-S8.13affected
  • 24.2 to < 24.2R2-S5.5affected
  • 24.4 to < 24.4R2-S5affected
  • 25.2 to < 25.2R2-S2affected
  • 25.4 to < 25.4R1-S3affected
  • 26.2 to < 26.2R1-S2affected

Juniper Networks Junos OS Evolved

Default version status: unaffected

  • 0 to < 23.2R2-S7.7-EVOaffected
  • 23.4 to < 23.4R2-S8.11-EVOaffected
  • 24.2 to < 24.2R2-S5.6-EVOaffected
  • 24.4 to < 24.4R2-S5-EVOaffected
  • 25.2 to < 25.2R2-S2-EVOaffected
  • 25.4 to < 25.4R1-S3-EVOaffected
  • 26.2 to < 26.2R1-S2-EVOaffected
  • 23.4X100affected
  • 25.2X100 to < 25.2X100-D35-EVOaffected
  • 25.4X300 to < 25.4X300-D40-EVOaffected

References