CVE-2019-0002 Junos OS: EX2300 and EX3400 series: Certain stateless firewall filter rules might not take effect
Attackers can bypass stateless firewall filters on Juniper EX2300/EX3400 switches when specific policer actions are configured, potentially allowing unauthorized 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-2019-0002?
CVE-2019-0002 is a medium-severity vulnerability in Juniper Junos, published on 15 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On EX2300 and EX3400 series, stateless firewall filter configuration that uses the action 'policer' in combination with other actions might not take effect. When this issue occurs, the output of the command: show pfe filter hw summary will not show the entry for: RACL group Affected releases are Junos OS on EX2300 and EX3400 series: 15.1X53 versions prior to 15.1X53-D590; 18.1 versions prior to 18.1R3; 18.2 versions prior to 18.2R2. This issue affect both IPv4 and IPv6 firewall filter.
Weakness: CWE-794
Which versions are affected by CVE-2019-0002?
It affects 1 product.
Products include Juniper Junos.
How do I fix CVE-2019-0002?
No fix has been published for CVE-2019-0002 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-0002 being exploited?
There is no known exploitation of CVE-2019-0002 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-9v62-432v-6vc6.