CVE-2017-3824 Denial of service in Cisco IOS XE 15.x
Unauthenticated remote attackers can cause Cisco cBR routers to reload, resulting in a denial of service.
- 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-2017-3824?
CVE-2017-3824 is a medium-severity denial of service vulnerability in Cisco Ios Xe, published on 3 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the handling of list headers in Cisco cBR Series Converged Broadband Routers could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a denial of service (DoS) condition. Cisco cBR-8 Converged Broadband Routers running vulnerable versions of Cisco IOS XE are affected. More Information: CSCux40637. Known Affected Releases: 15.5(3)S 15.6(1)S. Known Fixed Releases: 15.5(3)S2 15.6(1)S1 15.6(2)S 15.6(2)SP 16.4(1).
Weakness: CWE-119
Which versions are affected by CVE-2017-3824?
It affects 1 product.
Products include Cisco Ios Xe.
How do I fix CVE-2017-3824?
No fix has been published for CVE-2017-3824 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-2017-3824 being exploited?
There is no known exploitation of CVE-2017-3824 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios Xe
- CVE-2023-20198 Cisco IOS XE Web UI Privilege Escalation
- CVE-2018-0151 Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution
- CVE-2023-20273 Cisco IOS XE Web UI Command Injection
- CVE-2025-20188 Hardcoded credentials in Cisco IOS XE Software
- CVE-2021-34770 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Execution Vulnerability
Sources
Also known as GHSA-m9rq-2938-mw9p.