CVE-2019-1814: medium-severity vulnerability in Cisco Small Business 300 Series Managed Switches
Cisco Small Business 300 Series Managed Switches DHCP Denial of Service Vulnerability
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.8epss 2.1%
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.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Affected products
Cisco · Cisco Small Business 300 Series Managed SwitchesRelated CVEs — Cisco Small Business 300 Series Managed Switches
In the same product, most dangerous first.
CVE-2018-15439CRITICALCisco Small Business Switches Privileged Access VulnerabilityEPSS 49.7%CVE-2019-1943MEDIUMCisco Small Business Series Switches Open Redirect VulnerabilityEPSS 9.7%CVE-2020-3147HIGHCisco Small Business Switches Denial of Service VulnerabilityEPSS 2.3%CVE-2019-1891HIGHCisco Small Business Series Switches HTTP Denial of Service VulnerabilityEPSS 1.8%CVE-2019-1892HIGHCisco Small Business Series Switches Memory Corruption VulnerabilityEPSS 1.8%CVE-2018-0465—Cisco Small Business 300 Series Managed Switches Cross-Site Scripting VulnerabilityEPSS 0.8%