What is CVE-2018-0203?

CVE-2018-0203 is a medium-severity vulnerability in Cisco Unity Connection, classified under CWE-19. CVSS score: 5.3/10. Published 2018-02-22.

How severe is CVE-2018-0203?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Cisco Unity Connection

CVE-2018-0203

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.

EPSS: 0.016 (73.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Cisco Unity_connection
N/a Cisco Unity Connection — versions Cisco Unity Connection

Weakness classification (CWE)

CWE-19

References

psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
psirt@cisco.com (x_refsource_CONFIRM, Vendor Advisory)
psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)

Frequently asked questions

What is CVE-2018-0203?: CVE-2018-0203 is a medium-severity vulnerability in Cisco Unity Connection, classified under CWE-19. CVSS score: 5.3/10. Published 2018-02-22.
How severe is CVE-2018-0203?: Medium severity. CVSS v3 base score is 5.3 out of 10.