CVE-2020-12641
Roundcube Webmail Remote Code Execution Vulnerability
Roundcube Webmail
rcube_image.php in Roundcube Webmail before 1.4.4 allows attackers to execute arbitrary code via shell metacharacters in a configuration setting for im_convert_path or im_identify_path.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 22 June 2023. US federal agencies were required to remediate it by 13 July 2023.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 84.4%, which is higher than 99.7% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2020-12641 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2020-12641.
What does CVE-2020-12641 affect?
CVE-2020-12641 affects Roundcube Webmail. rcube_image.php in Roundcube Webmail before 1.4.4 allows attackers to execute arbitrary code via shell metacharacters in a configuration setting for im_convert_path or im_identify_path.
How severe is CVE-2020-12641?
CVE-2020-12641 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 84.4%, higher than 99.7% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 13 July 2023.
How should organisations respond to CVE-2020-12641?
Apply the vendor patch for Roundcube Webmail as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.