What is CVE-2018-0203?

CVE-2018-0203 is a vulnerability in the SMTP relay of Cisco Unity Connection that allows an unauthenticated remote attacker to send unsolicited email messages.

How does CVE-2018-0203 affect Cisco Unity Connection?

CVE-2018-0203 affects Cisco Unity Connection by allowing an unauthenticated remote attacker to send unsolicited email messages through the SMTP relay.

What is the severity of CVE-2018-0203?

CVE-2018-0203 has a severity value of 5.3 which is considered medium.

How can I fix CVE-2018-0203?

To fix CVE-2018-0203, Cisco has released a security advisory that provides information on how to mitigate the vulnerability. Please refer to the provided link for more details.

What is the Common Weakness Enumeration (CWE) number for CVE-2018-0203?

The Common Weakness Enumeration (CWE) number for CVE-2018-0203 is 19.

Vulnerability/
CVE-2018-0203

medium

5.3

CWE

22/2/2018

5/8/2024

CVE-2018-0203

First published: Thu Feb 22 2018(Updated: )

A vulnerability in the SMTP relay of Cisco Unity Connection could allow an unauthenticated, remote attacker to send unsolicited email messages, aka a Mail Relay Vulnerability. The vulnerability is due to improper handling of domain information in the affected software. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted requests to the targeted application. A successful exploit could allow the attacker to send email messages to arbitrary addresses. Cisco Bug IDs: CSCvg62215.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Unity Connection

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Reference Links

Frequently Asked Questions

What is CVE-2018-0203?
CVE-2018-0203 is a vulnerability in the SMTP relay of Cisco Unity Connection that allows an unauthenticated remote attacker to send unsolicited email messages.
How does CVE-2018-0203 affect Cisco Unity Connection?
CVE-2018-0203 affects Cisco Unity Connection by allowing an unauthenticated remote attacker to send unsolicited email messages through the SMTP relay.
What is the severity of CVE-2018-0203?
CVE-2018-0203 has a severity value of 5.3 which is considered medium.
How can I fix CVE-2018-0203?
To fix CVE-2018-0203, Cisco has released a security advisory that provides information on how to mitigate the vulnerability. Please refer to the provided link for more details.
What is the Common Weakness Enumeration (CWE) number for CVE-2018-0203?
The Common Weakness Enumeration (CWE) number for CVE-2018-0203 is 19.

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