How severe is CVE-2021-44026?

CVE-2021-44026 has a CVSS 3.1 base score of 9.8 (CRITICAL). EPSS estimates a 69.9% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2021-44026: Roundcube Webmail SQL Injection Vulnerability

CISA Known Exploited Vulnerabilities

Roundcube Webmail SQL Injection Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2023-06-22

Remediation due

2023-07-13

Required action
Apply updates per vendor instructions.

CISA notes
https://roundcube.net/news/2021/11/12/security-updates-1.4.12-and-1.3.17-released; https://nvd.nist.gov/vuln/detail/CVE-2021-44026

Description

Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to a potential SQL injection via search or search_params.

Severity

CVSS 3.1 · CISA9.8 CRITICAL

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

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Exploitation Context

as of October 13, 2026

All KEV statistics→

CISA added CVE-2021-44026 to the KEV catalog 580 days after its CVE record was published. The median for entries added in 2023 is 12 days.
It is one of 11 Roundcube entries in the CISA KEV catalog, and one of 4 added in 2023.
Its current EPSS score (69.9%) is higher than that of 58% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

7 Links

Vendor advisories

Mailing lists

[debian-lts-announce] 20211206 [SECURITY] [DLA 2840-1] roundcube security update

Other references

Record Details

Published

2021-11-19

Last updated

2025-10-21

Assigner (CNA)

mitre

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.