CVE-2026-102027
Junos OS and Junos OS Evolved: A configured BGP neighbor causes rpd crash when multipath next-hops are processed
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP neighbor to cause an rpd crash via BGP labeled-unicast UPDATEs when the affected multipath features are enabled.
| CWE | CWE-131 |
| Vendor | juniper networks |
| Product | junos os |
| Published | Oct 14, 2026 |
Stay Ahead of the Next One
Get instant alerts for juniper networks junos os
Be the first to know when new high vulnerabilities affecting juniper networks junos os are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Juniper Networks / Junos OS
24.4 < 24.4R2-S5 25.2 < 25.2R2-S2 25.4 < 25.4R1-S3 26.2 < 26.2R1-S2
Juniper Networks / Junos OS Evolved
24.4 < 24.4R2-S5-EVO 25.2 < 25.2R2-S2-EVO 25.4 < 25.4R1-S3-EVO 26.2 < 26.2R1-S2-EVO 25.2X100 < 25.2X100-D35-EVO 25.4X300 < 25.4X300-D40-EVO