What is CVE-2019-1858?

CVE-2019-1858 is a high-severity vulnerability in Cisco 7000 10-Slot, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2019-05-16.

How severe is CVE-2019-1858?

High severity. CVSS v3 base score is 8.6 out of 10.

Improper input validation in Cisco 7000 10-Slot

CVE-2019-1858

A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the SNMP application to leak system memory, which could cause an affected device to restart unexpectedly. The vulnerability is due to improper error handling when processing inbound SNMP packets. An attacker could exploit this vulnerability by sending multiple crafted SNMP packets to an affected device. A successful exploit could allow the attacker to cause the SNMP application to leak system memory because of an improperly handled error condition during packet processing. Over time, this memory leak could cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.024 (82.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2019-1858?: CVE-2019-1858 is a high-severity vulnerability in Cisco 7000 10-Slot, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2019-05-16.
How severe is CVE-2019-1858?: High severity. CVSS v3 base score is 8.6 out of 10.