CVE-2026-102087
Description
An Incomplete List of Disallowed Inputs vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS). When in a BGP traffic engineering scenario a specific, valid, optional, non-transitive BGP update is received over an established BGP session, RPD crashes and automatically restarts, which leads to traffic impact until routing has reconverged. This issue affects: Junos OS: * All versions before 23.2R2-S6; * 23.4 versions before 23.4R2-S7; * 24.2 versions before 24.2R2-S4; * 24.4 versions before 24.4R2-S4; * 25.2 versions before 25.2R1-S2, 25.2R2; Junos OS Evolved: * All versions before 23.2R2-S6-EVO; * 23.4 versions before 23.4R2-S8.11-EVO; * 24.2 versions before 24.2R2-S4-EVO; * 24.4 versions before 24.4R2-S5-EVO; * 25.2 versions before 25.2R1-S2-EVO, 25.2R2-EVO;
How to fix
- Juniper Networks Junos OS23.2R2-S6, 23.4R2-S7, 24.2R2-S4, 24.4R2-S4, 25.2R1-S2, 25.2R2 or later
- Juniper Networks Junos OS Evolved23.2R2-S6-EVO, 23.4R2-S8.11-EVO, 24.2R2-S4-EVO, 24.4R2-S5-EVO, 25.2R1-S2-EVO, 25.2R2-EVO or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Juniper Networks Junos OS | v < 23.2R2-S6, 23.4 ≤ v < 23.4R2-S7, 24.2 ≤ v < 24.2R2-S4, 24.4 ≤ v < 24.4R2-S4, 25.2 ≤ v < 25.2R1-S2, 25.2R2 | 23.2R2-S6, 23.4R2-S7, 24.2R2-S4, 24.4R2-S4, 25.2R1-S2, 25.2R2 |
| Juniper Networks Junos OS Evolved | v < 23.2R2-S6-EVO, 23.4 ≤ v < 23.4R2-S8.11-EVO, 24.2 ≤ v < 24.2R2-S4-EVO, 24.4 ≤ v < 24.4R2-S5-EVO, 25.2 ≤ v < 25.2R1-S2-EVO, 25.2R2-EVO | 23.2R2-S6-EVO, 23.4R2-S8.11-EVO, 24.2R2-S4-EVO, 24.4R2-S5-EVO, 25.2R1-S2-EVO, 25.2R2-EVO |
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