NULL Pointer Dereference in Juniper Networks Junos OS Routing Policy
CVE-2026-101961

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-2026-101961?

A NULL Pointer Dereference vulnerability exists in the routing-policy nexthop-ECMP matcher of Juniper Networks Junos OS and Junos OS Evolved. This security issue allows an attacker to craft a specific BGP packet targeting a configured eBGP peer. If successful, the attack can lead to a denial of service condition in the routing daemon, interrupting network service and stability. Organizations are encouraged to review their configurations and apply necessary patches to mitigate this vulnerability.

Affected Version(s)

Junos OS 23.4 < 23.4R2-S8.13

Junos OS 24.2 < 24.2R2-S5.5

Junos OS 24.4 < 24.4R2-S5

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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