CVE-2022-22164 Junos OS Evolved: Telnet service may be enabled when it is expected to be disabled.
A bug in Junos OS Evolved prevents disabling the Telnet service, leaving it active and exposing the device to unauthorized access.
- 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-2022-22164?
CVE-2022-22164 is a medium-severity vulnerability in Juniper Junos Os Evolved, published on 19 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An Improper Initialization vulnerability in Juniper Networks Junos OS Evolved may cause a commit operation for disabling the telnet service to not take effect as expected, resulting in the telnet service staying enabled. When it is not intended to be operating on the device, an administrator can issue the following command to verify whether telnet is operating in the background: user@device > show system connections | grep :23 tcp 0 0 0.0.0.0:23 0.0.0.0:* LISTEN 20879/xinetd This issue affects: Juniper Networks Junos OS Evolved All versions prior to 20.4R2-S2-EVO; 21.1 version 21.1R1-EVO and later versions; 21.2 versions prior to 21.2R2-EVO.
Weakness: CWE-665
Which versions are affected by CVE-2022-22164?
It affects 1 product.
Products include Juniper Junos Os Evolved.
How do I fix CVE-2022-22164?
No fix has been published for CVE-2022-22164 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-22164 being exploited?
There is no known exploitation of CVE-2022-22164 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-56fg-32qc-v967.