Is It On KEV?

Roundcube Webmail

YES - ON THE CISA KEV LIST
CVE-2025-49113

RoundCube Webmail Deserialization of Untrusted Data Vulnerability

CISA catalog due date2026-03-13
243 days past due
EPSS exploit probability (next 30 days)99.6% · 100percentile
From CVE publication to KEV listing263 days (2025-06-02 → 2026-02-20)
Remediation window (KEV listing to due date)21 days
Days on the KEV list264 days
Date added to KEV2026-02-20
Known ransomware campaign useUnknown
VendorRoundcube
ProductWebmail
Weaknesses (CWE)CWE-502

Roundcube: 11 entries (0.6% of all KEV entries are from this vendor); 2 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

Description

RoundCube Webmail contains a deserialization of untrusted data vulnerability that allows remote code execution by authenticated users because the _from parameter in a URL is not validated in program/actions/settings/upload.php.

Required action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://roundcube.net/news/2025/06/01/security-updates-1.6.11-and-1.5.10 ; https://github.com/roundcube/roundcubemail/releases/tag/1.5.10 ; https://github.com/roundcube/roundcubemail/releases/tag/1.6.11 ; https://nvd.nist.gov/vuln/detail/CVE-2025-49113

References

Other KEV entries for this vendor: Roundcube

Roundcube - Vendors with KEV entries

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