CVE-2015-0639 Denial of service in n/a
Remote attackers can cause a device reload via malformed IPv6 packets when MMON or NBAR is enabled in Cisco IOS XE.
- 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-2015-0639?
CVE-2015-0639 is a high-severity denial of service vulnerability in Cisco Ios Xe, published on 26 Mar 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Common Flow Table (CFT) feature in Cisco IOS XE 3.6 and 3.7 before 3.7.1S, 3.8 before 3.8.0S, 3.9 before 3.9.0S, 3.10 before 3.10.0S, 3.11 before 3.11.0S, 3.12 before 3.12.0S, 3.13 before 3.13.0S, 3.14 before 3.14.0S, and 3.15 before 3.15.0S, when MMON or NBAR is enabled, allows remote attackers to cause a denial of service (device reload) via malformed IPv6 packets with IPv4 UDP encapsulation, aka Bug ID CSCua79665.
Weakness: CWE-20
Which versions are affected by CVE-2015-0639?
It affects 1 product.
Products include Cisco Ios Xe.
How do I fix CVE-2015-0639?
No fix has been published for CVE-2015-0639 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-2015-0639 being exploited?
There is no known exploitation of CVE-2015-0639 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-5f9h-8xg4-pgmx.