CVE-2018-18566

Name: CVE-2018-18566
Creator: NVD / NIST
Published: 2018-10-24T22:29:01.51+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 2.75%

Last modified Jun 17, 2026

CVE-2018-18566 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. The SIP service in Polycom VVX 500 and 601 devices 5.8.0.12848 and earlier allow remote attackers to obtain sensitive phone configuration information by leveraging use with an on-premise installation with Skype for Business.. EPSS estimates a 2.75% chance of exploitation in the next 30 days.

Description

The SIP service in Polycom VVX 500 and 601 devices 5.8.0.12848 and earlier allow remote attackers to obtain sensitive phone configuration information by leveraging use with an on-premise installation with Skype for Business.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

2.75%

84.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Polycom	Unified Communications Software	<= 5.8.0.12848
Polycom	Vvx 601 Firmware	All versions
Polycom	Vvx 500 Firmware	All versions

References

http://www.securityfocus.com/bid/105746Third Party Advisory, VDB Entry
https://seclists.org/bugtraq/2018/Oct/33Exploit, Mailing List, Third Party Advisory
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-028.txtExploit, Third Party Advisory
http://www.securityfocus.com/bid/105746Third Party Advisory, VDB Entry
https://seclists.org/bugtraq/2018/Oct/33Exploit, Mailing List, Third Party Advisory
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-028.txtExploit, Third Party Advisory

Timeline

Published: Oct 24, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-18566?

How severe is CVE-2018-18566?

CVE-2018-18566 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 2.75% probability of exploitation in the next 30 days.

How do I fix CVE-2018-18566?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-18566?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST