CVE-2013-4686 Denial of service in n/a
Remote attackers can crash Juniper Junos devices via crafted ARP requests when specific VLAN settings are enabled.
- 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-2013-4686?
CVE-2013-4686 is a high-severity denial of service vulnerability in Juniper Junos, published on 11 Jul 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The kernel in Juniper Junos 10.4 before 10.4R14, 11.4 before 11.4R8, 11.4X27 before 11.4X27.43, 12.1 before 12.1R6, 12.1X44 before 12.1X44-D20, 12.2 before 12.2R4, and 12.3 before 12.3R2, in certain VLAN configurations with unrestricted arp-resp and proxy-arp settings, allows remote attackers to cause a denial of service (device crash) via a crafted ARP request, aka PR 842091.
Which versions are affected by CVE-2013-4686?
It affects 1 product.
Products include Juniper Junos.
How do I fix CVE-2013-4686?
No fix has been published for CVE-2013-4686 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-2013-4686 being exploited?
There is no known exploitation of CVE-2013-4686 in the wild and no public exploit code.
Other vulnerabilities in Juniper Junos
- CVE-2023-36845 Juniper Junos OS EX Series and SRX Series PHP External Variable Modification
- CVE-2020-1631 Juniper Junos OS Path Traversal
- CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization
- CVE-2023-36851 Juniper Junos OS SRX Series Missing Authentication for Critical Function
- CVE-2023-36844 Juniper Junos OS EX Series PHP External Variable Modification
Sources
Also known as GHSA-58r4-7mj9-4vhp.