CVE-2023-44176 Junos OS : Stack overflow vulnerability in CLI command processing
A stack-based buffer overflow in Junos OS CLI allows low-privileged attackers to cause a sustained denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-44176?
CVE-2023-44176 is a medium-severity memory corruption vulnerability in Juniper Junos, published on 12 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A Stack-based Buffer Overflow vulnerability in the CLI command of Juniper Networks Junos OS allows a low privileged attacker to execute a specific CLI commands leading to Denial of Service.
Repeated actions by the attacker will create a sustained Denial of Service (DoS) condition.
This issue affects Juniper Networks:
Junos OS:
* All versions prior to 20.4R3-S8; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions prior to 21.3R3-S5; * 22.1 versions prior to 22.1R3-S3; * 22.3 versions prior to 22.3R3; * 22.4 versions prior to 22.4R3.
Which versions are affected by CVE-2023-44176?
It affects 2 products.
Products include Juniper Junos, Juniper Junos Os Evolved.
How do I fix CVE-2023-44176?
No fix has been published for CVE-2023-44176 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-44176 being exploited?
There is no known exploitation of CVE-2023-44176 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-v38m-2fgx-2r9p.