CVE-2024-39537 Junos OS Evolved: ACX7000 Series: Ports which have been inadvertently exposed can be reached over the network
Unauthenticated attackers can access internal processes via exposed network ports on Juniper ACX routers, leading to information disclosure and availability issues.
- 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-2024-39537?
CVE-2024-39537 is a medium-severity vulnerability in Juniper Junos Os Evolved, published on 11 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved on ACX 7000 Series allows an unauthenticated, network-based attacker to cause a limited information disclosure and availability impact to the device.
Due to a wrong initialization, specific processes which should only be able to communicate internally within the device can be reached over the network via open ports.
This issue affects Junos OS Evolved on ACX 7000 Series:
* All versions before 21.4R3-S7-EVO, * 22.2-EVO
versions
before 22.2R3-S4-EVO, * 22.3-EVO versions before 22.3R3-S3-EVO, * 22.4-EVO versions before 22.4R3-S2-EVO, * 23.2-EVO versions before 23.2R2-EVO, * 23.4-EVO versions before 23.4R1-S1-EVO, 23.4R2-EVO.
Weakness: CWE-923
Which versions are affected by CVE-2024-39537?
It affects 1 product.
Products include Juniper Junos Os Evolved.
How do I fix CVE-2024-39537?
No fix has been published for CVE-2024-39537 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-39537 being exploited?
There is no known exploitation of CVE-2024-39537 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-8r2p-hq88-fpcf.