CVE-2024-47498 Junos OS Evolved: QFX5000 Series: Configured MAC learning and move limits are not in effect
An unauthenticated adjacent attacker can cause denial of service on Juniper QFX5000 switches by exploiting unenforced MAC learning limits.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-47498?
CVE-2024-47498 is a high-severity denial of service vulnerability in Juniper Junos Os Evolved, published on 11 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An Unimplemented or Unsupported Feature in UI vulnerability in the CLI of Juniper Networks Junos OS Evolved on QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
Several configuration statements meant to enforce limits on MAC learning and moves can be configured but do not take effect. This can lead to control plane overload situations which will severely impact the ability of the device to processes legitimate traffic.
This issue affects Junos OS Evolved on QFX5000 Series:
* All versions before 21.4R3-S8-EVO, * 22.2-EVO versions before 22.2R3-S5-EVO,
* 22.4-EVO versions before 22.4R3-EVO, * 23.2-EVO versions before 23.2R2-EVO.
Which versions are affected by CVE-2024-47498?
It affects 1 product.
Products include Juniper Junos Os Evolved.
How do I fix CVE-2024-47498?
No fix has been published for CVE-2024-47498 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-2024-47498 being exploited?
There is no known exploitation of CVE-2024-47498 in the wild and no public exploit code.
Other vulnerabilities in Juniper Junos Os Evolved
- CVE-2026-21902 Junos OS Evolved: PTX Series: A vulnerability allows a unauthenticated, network-based attacker to execute code as root
- CVE-2023-28983 Junos OS Evolved: Shell Injection vulnerability in the gNOI server
- CVE-2025-21599 Denial of service in Junos OS Evolved
- CVE-2024-47502 Junos OS Evolved: TCP session state is not always cleared on the Routing Engine leading to DoS
- CVE-2024-39531 Junos OS Evolved: ACX 7000 Series: Protocol specific DDoS configuration affects other protocols
Sources
Also known as GHSA-43mx-p8wf-wh27.