CVE-2019-1814
Status: ModifiedHigh (8.6)—
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
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Base score: 8.6
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 2.13%
- Percentile among all scored CVEs: 81
- Score date: 10/5/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (27)
Cisco — Sf300-08 FirmwareCisco — Sf300-24 FirmwareCisco — Sf300-24mp FirmwareCisco — Sf300-24p FirmwareCisco — Sf300-24pp FirmwareCisco — Sf300-48 FirmwareCisco — Sf300-48p FirmwareCisco — Sf300-48pp FirmwareCisco — Sf302-08 FirmwareCisco — Sf302-08mp FirmwareCisco — Sf302-08mpp FirmwareCisco — Sf302-08p FirmwareCisco — Sf302-08pp FirmwareCisco — Sg300-10 FirmwareCisco — Sg300-10mp FirmwareCisco — Sg300-10mpp FirmwareCisco — Sg300-10p FirmwareCisco — Sg300-10pp FirmwareCisco — Sg300-10sfp FirmwareCisco — Sg300-20 FirmwareCisco — Sg300-28 FirmwareCisco — Sg300-28mp FirmwareCisco — Sg300-28p FirmwareCisco — Sg300-28pp FirmwareCisco — Sg300-52 FirmwareCisco — Sg300-52mp FirmwareCisco — Sg300-52p Firmware
CWEs
- CWE-400
- CWE-770
References
Raw JSON (NVD)
Show
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