What happened
A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent LDP peer to cause an rpd crash or execute arbitrary code via a malformed LDP Label Mapping message.
Affected versions
Junos OS: 23.4 through before 23.4R2-S8.13 (custom); 24.2 through before 24.2R2-S5.5 (custom); 24.4 through before 24.4R2-S5 (custom); 25.2 through before 25.2R2-S2 (custom); 25.4 through before 25.4R1-S3 (custom); 26.2 through before 26.2R1-S2 (custom); 23.4 through before 23.4R2-S8.11-EVO (custom); 24.2 through before 24.2R2-S5.6-EVO (custom); 24.4 through before 24.4R2-S5-EVO (custom); 25.2 through before 25.2R2-S2-EVO (custom); 25.4 through before 25.4R1-S3-EVO (custom); 26.2 through before 26.2R1-S2-EVO (custom); 23.4X100 (custom); 25.2X100 through before 25.2X100-D35-EVO (custom); 25.4X300 through before 25.4X300-D40-EVO (custom) Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.