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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-101991

Junos OS and Junos OS Evolved: A BGP-LS peer causes heap data disclosure when traffic-engineering routing is enabled

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Status
Published
Published
Updated
Assigning organization
juniper

Description

An Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP-LS peer to cause heap data disclosure via a malformed UPDATE sent over a session with the traffic-engineering address family 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