CRITICAL CISA KEV Actively Exploited

CVE-2025-49113

roundcubemail: Remote Code Execution in Roundcube via Unvalidated _from Parameter

CVSS v3

9.9

CRITICAL

EPSS Score

90.4%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

active

SSVC status

Description

Roundcube Webmail before 1.5.10 and 1.6.x before 1.6.11 allows remote code execution by authenticated users because the _from parameter in a URL is not validated in program/actions/settings/upload.php, leading to PHP Object Deserialization.

CISA Known Exploited Vulnerability

Date Added
2/20/2026
Patch Due Date
3/13/2026
Ransomware Use
Unknown

Technical details

CVSS v3 Vector
3.1
Published
6/2/2025
Last Modified
2/23/2026
Exploit-DB
EDB-52324

Frequently asked questions

What is CVE-2025-49113?

Roundcube Webmail before 1.5.10 and 1.6.x before 1.6.11 allows remote code execution by authenticated users because the _from parameter in a URL is not validated in program/actions/settings/upload.php, leading to PHP Object Deserialization.

Is CVE-2025-49113 actively exploited?

Yes. CVE-2025-49113 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 3/13/2026.

What is the CVSS score for CVE-2025-49113?

CVE-2025-49113 has a CVSS v3 base score of 9.9 (CRITICAL severity), with vector string 3.1.

Is CVE-2025-49113 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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