CVE-2019-1963

Cisco FXOS and NX-OS Software Authenticated Simple Network Management Protocol Denial of Service Vulnerability

State: Published
Severity: 7.7 High
Published: Aug 28, 2019
Updated: Nov 21, 2024
Reserved: Dec 6, 2018

Description

A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, remote attacker to cause the SNMP application on an affected device to restart unexpectedly. The vulnerability is due to improper validation of Abstract Syntax Notation One (ASN.1)-encoded variables in SNMP packets. An attacker could exploit this vulnerability by sending a crafted SNMP packet to the SNMP daemon on the affected device. A successful exploit could allow the attacker to cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition.

Scores

CVSS	Score	Vector	Source
3.0	7.7 High	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H	cisco

Weaknesses

CWE-20

Affected Products

Product	Versions
Cisco Unified Computing System (Managed)Cisco	before 8.4(1)Affected

References

20190828 Cisco FXOS and NX-OS Software Authenticated Simple Network Management Protocol Denial of Service Vulnerabilityvendor-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.