CVE-2015-4243 Denial of service in n/a
Remote attackers on the local network can cause a device reload by sending malformed PPPoE packets to Cisco IOS XE devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2015-4243?
CVE-2015-4243 is a medium-severity denial of service vulnerability in Cisco Ios Xe, published on 8 Jul 2015. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The PPPoE establishment implementation in Cisco IOS XE 3.5.0S on ASR 1000 devices allows remote attackers to cause a denial of service (device reload) by sending malformed PPPoE Active Discovery Request (PADR) packets on the local network, aka Bug ID CSCty94202.
Weakness: CWE-399
Which versions are affected by CVE-2015-4243?
It affects 1 product.
Products include Cisco Ios Xe.
How do I fix CVE-2015-4243?
No fix has been published for CVE-2015-4243 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-2015-4243 being exploited?
There is no known exploitation of CVE-2015-4243 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-xmx7-4wwc-55h4.