Incorrect Calculation Vulnerability in Junos OS Routing Protocol Daemon
CVE-2026-101963

8.7HIGH

Key Information:

Vendor

Juniper Networks
Status
Junos Os
Junos Os Evolved
Vendor
CVE Published:
14 October 2026

Badges

👾 Exploit Exists

What is CVE-2026-101963?

An Incorrect Calculation vulnerability exists in the routing protocol daemon (rpd) of Juniper Networks' Junos OS and Junos EVO. This flaw allows a remote BGP EVPN neighbor to trigger a crash of the rpd when SRv6 EVPN multihoming is configured, potentially leading to significant disruptions in the network's routing functionalities.

Affected Version(s)

Junos OS 25.2 < 25.2R2-S2

Junos OS 25.4 < 25.4R1-S3

Junos OS 26.2 < 26.2R1-S2

References

https://supportportal.juniper.net/JSA112187
vendor-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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