CVE-2026-102046: Junos OS: MX Series: An attacker causes a Routing Engine denial of service when SCTP service is used
A Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in netsctp.ko of Juniper Networks Junos OS on MX Series allows an unauthenticated network attacker to cause a denial of service via crafted SCTP network traffic.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Juniper Junos OSto a version that resolves this vulnerability.Fixed in 23.2R2-S7.7 - Upgrade
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Juniper Junos OSto a version that resolves this vulnerability.Fixed in 23.4R2-S8.13 - Upgrade
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Juniper Junos OSto a version that resolves this vulnerability.Fixed in 24.2R2-S5.5 - Upgrade
Upgrade
Juniper Junos OSto a version that resolves this vulnerability.Fixed in 24.4R2-S5 - Upgrade
Upgrade
Juniper Junos OSto a version that resolves this vulnerability.Fixed in 25.2R2-S2 - Upgrade
Upgrade
Juniper Junos OSto a version that resolves this vulnerability.Fixed in 25.4R1-S3 - Upgrade
Upgrade
Juniper Junos OSto a version that resolves this vulnerability.Fixed in 25.4R2 - Upgrade
Upgrade
Juniper Junos OSto a version that resolves this vulnerability.Fixed in 26.2R1-S2 - Upgrade
Upgrade
Juniper Junos OSto a version that resolves this vulnerability.Fixed in 26.2R2 - Upgrade
Upgrade
Juniper Junos OSto a version that resolves this vulnerability.Fixed in 26.4R1
Event History
Frequently Asked Questions
Which systems are exposed to this denial-of-service condition?
Juniper Networks Junos OS on MX Series is affected when SCTP service is used. The issue is in netsctp.ko and can be triggered through crafted SCTP network traffic.
Does exploitation require credentials or user interaction?
No. The supplied CVSS vector indicates network reachability, low attack complexity, no privileges required, and no user interaction.