An Access of Uninitialized Pointer vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved with BGP sharding configured allows an attacker triggering indirect next-hop updates, along with timing outside the attacker's control, to cause rpd to crash and restart, leading to a Denial of Service (DoS). With BGP sharding enabled, triggering route resolution of an indirect next-hop (e.g., an IGP route change over which a BGP route gets resolved), may cause rpd to crash and restart. An attacker causing continuous IGP route churn, resulting in repeated route re-resolution, will increase the likelihood of triggering this issue, leading to a potentially extended DoS condition. This issue affects: Junos OS: * all versions before 21.4R3-S6, * from 22.1 before 22.1R3-S6, * from 22.2 before 22.2R3-S3, * from 22.3 before 22.3R3-S3, * from 22.4 before 22.4R3, * from 23.2 before 23.2R2; Junos OS Evolved: * all versions before 22.3R3-S3-EVO, * from 22.4 before 22.4R3-EVO, * from 23.2 before 23.2R2-EVO. Versions before Junos OS 21.3R1 and Junos OS Evolved 21.3R1-EVO are unaffected by this issue.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://supportportal.juniper.net/JSA103151 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.0 · juniperNVD modified 2026-10-18 21:10
Affected (CPE criteria) 80
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r3-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r3-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.4:r3-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r3-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r3-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.1:r3-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.2:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.2:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.2:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.2:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.2:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.3:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.3:r1-s1:*:*:*:*:*:*- and 40 more
References 1
- https://supportportal.juniper.net/JSA103151 Vendor Advisory