CVE-2020-27603

Name: CVE-2020-27603
Creator: NVD / NIST
Published: 2020-10-21T15:15:26.89+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.93%

Last modified Jun 17, 2026

CVE-2020-27603 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. BigBlueButton before 2.2.27 has an unsafe JODConverter setting in which LibreOffice document conversions can access external files.. EPSS estimates a 2.93% chance of exploitation in the next 30 days.

Description

BigBlueButton before 2.2.27 has an unsafe JODConverter setting in which LibreOffice document conversions can access external files.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.93%

85.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Bigbluebutton	Bigbluebutton	< 2.2.27

References

https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.htmlExploit, Third Party Advisory
https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.htmlExploit, Third Party Advisory

Timeline

Published: Oct 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27603?

BigBlueButton before 2.2.27 has an unsafe JODConverter setting in which LibreOffice document conversions can access external files.

How severe is CVE-2020-27603?

CVE-2020-27603 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.93% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27603?

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-2020-27603?

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

Scan your code now

Source: NVD / NIST