Description
An Expected Behavior Violation vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker sending a valid BGP UPDATE packet to cause a BGP session reset, resulting in a Denial of Service (DoS).
Continuous receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue affects iBGP and eBGP and both IPv4 and IPv6 are affected by this vulnerability.
This issue affects Junos OS:
* All versions before 21.2R3-S9, * from 21.4 before 21.4R3-S11, * from 22.2 before 22.2R3-S7, * from 22.4 before 22.4R3-S7, * from 23.2 before 23.2R2-S4, * from 23.4 before 23.4R2-S4, * from 24.2 before 24.2R2, * from 24.4 before 24.4R1-S3, 24.4R2
Junos OS Evolved:
* All versions before 22.2R3-S7-EVO, * from 22.4-EVO before 22.4R3-S7-EVO, * from 23.2-EVO before 23.2R2-S4-EVO, * from 23.4-EVO before 23.4R2-S4-EVO, * from 24.2-EVO before 24.2R2-EVO, * from 24.4-EVO before 24.4R1-S3-EVO, 24.4R2-EVO.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS | < 21.2R3-S9; >= 21.4, < 21.4R3-S11; >= 22.2, < 22.2R3-S7; >= 22.4, < 22.4R3-S7; >= 23.2, < 23.2R2-S4; >= 23.4, < 23.4R2-S4; >= 24.2, < 24.2R2; >= 24.4, < 24.4R1-S3, 24.4R2 |
| Juniper Networks | Junos OS Evolved | < 22.2R3-S7-EVO; >= 22.4-EVO, < 22.4R3-S7-EVO; >= 23.2-EVO, < 23.2R2-S4-EVO; >= 23.4-EVO, < 23.4R2-S4-EVO; >= 24.2-EVO, < 24.2R2-EVO; >= 24.4-EVO, < 24.4R1-S3-EVO, 24.4R2-EVO |
References
Timeline
- Published
- Jul 11, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed