6.8
Medium
CVE-2019-1814 A vulnerability in the interactions between the DHCP and TFTP features for Cisco Small Business 300 Series (Sx300)…
Description
A vulnerability in the interactions between the DHCP and TFTP features for Cisco Small Business 300 Series (Sx300) Managed Switches could allow an unauthenticated, remote attacker to cause the device to become low on system memory, which in turn could lead to an unexpected reload of the device and result in a denial of service (DoS) condition on an affected device. The vulnerability is due to a failure to free system memory when an unexpected DHCP request is received. An attacker could exploit this vulnerability by sending a crafted DHCP packet to the targeted device. A successful exploit could allow the attacker to cause an unexpected reload of the device.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Small Business 300 Series Managed Switches | 1.4.0.88 | No fix stated |
References
- 20190515 Cisco Small Business 300 Series Managed Switches DHCP Denial of Service Vulnerability tools.cisco.com
- 108344 www.securityfocus.com
Timeline
- Published
- Last modified
Other CVEs of Cisco Small Business 300 Series Managed Switches
The 7 CVEs of Cisco Small Business 300 Series Managed Switches →
CVE-2020-3147
A vulnerability in the web UI of Cisco Small Business Switches could allow an unauthenticated, remote attacker to…
8.6
High
CVE-2019-1943
A vulnerability in the web interface of Cisco Small Business 200, 300, and 500 Series Switches software could allow an…
4.7
Medium
CVE-2019-1891
A vulnerability in the web interface of Cisco Small Business 200, 300, and 500 Series Managed Switches could allow an…
7.5
High
CVE-2019-1892
A vulnerability in the Secure Sockets Layer (SSL) input packet processor of Cisco Small Business 200, 300, and 500…
7.5
High