CVE-2026-102046 Junos OS: MX Series: An attacker causes a Routing Engine denial of service when SCTP service is used
An unauthenticated attacker can cause a Routing Engine denial of service on Juniper MX Series devices via crafted SCTP traffic.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102046?
CVE-2026-102046 is a high-severity denial of service vulnerability in Juniper Networks Junos OS, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-835
Which versions are affected by CVE-2026-102046?
How do I fix CVE-2026-102046?
No fix has been published for CVE-2026-102046 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-102046 being exploited?
There is no known exploitation of CVE-2026-102046 in the wild and no public exploit code.
Sources
Also known as GHSA-v778-q7j4-mw77.