CVE-2021-44026
CriticalExploitedPublic exploitroundcube - security update
Published Nov 29, 2021 · Updated Sep 17, 2026 · Also known as BIT-roundcube-2021-44026, DEBIAN-CVE-2021-44026, UBUNTU-CVE-2021-44026
Key Facts
Patch immediately- CVE-2021-44026 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Webmail (Roundcube), Debian Linux, Fedora (Fedoraproject) and 1 more product.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 20, 2023. Public exploit code is available.
- EPSS estimates a 70% probability of exploitation in the next 30 days.
- Fixed versions are available, including roundcube 1.2.3+dfsg.1-4+deb9u9, roundcube 1.2~beta+dfsg.1-0ubuntu1+esm2, roundcube 1.3.17.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
70%
Higher than 99.3% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2021-44026 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Jun 22, 2023 | Jul 13, 2023 | Not reported |
| Industry KEV feed | Jun 20, 2023 | Jul 13, 2023 | Not reported |
| CIRCL KEV | Jun 22, 2023 | Jul 13, 2023 | Not reported |
| ENISA EUVD | Jun 22, 2023 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
25 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| WebmailRoundcube | See advisory | 1.3.17 |
| Debian LinuxDebian | 10.0, 11.0, 9.0 | n/a |
| FedoraFedoraproject | 33, 34 | n/a |
| roundcubebitnami | See advisory | 1.3.17 |
Patched Releases
roundcube
1.2.3+dfsg.1-4+deb9u9, 1.2~beta+dfsg.1-0ubuntu1+esm2, 1.3.17, 1.3.17+dfsg.1-1~deb10u1, 1.3.6+dfsg.1-1ubuntu0.1~esm2, 1.4.12, 1.4.12+dfsg.1-1~deb11u1, 1.4.3+dfsg.1-1ubuntu0.1~esm2, 1.5.0+dfsg.1-1, 1.5.0+dfsg.1-2ubuntu0.1~esm1
Webmail
1.3.17
Timeline
Publicly disclosed
Nov 29, 2021
Added to Industry KEV feed
Jun 20, 2023
Added to CISA KEV
Jun 22, 2023
Added to CIRCL KEV
Jun 22, 2023
Added to ENISA EUVD
Jun 22, 2023
Last updated
Sep 17, 2026
Weakness Type
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
- advisory[debian-lts-announce] 20211206 [SECURITY] [DLA 2840-1] roundcube security update
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2021-44026
- advisoryhttps://security-tracker.debian.org/tracker/icu
- advisoryhttps://security-tracker.debian.org/tracker/roundcube
- advisoryhttps://ubuntu.com/security/CVE-2020-12625
FAQ
Common Questions.
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.
Affected: Webmail (Roundcube); Debian Linux versions 10.0, 11.0, 9.0; Fedora (Fedoraproject) versions 33, 34, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 20, 2023.
Yes. It was added on Jun 22, 2023 with a federal remediation due date of Jul 13, 2023.
Public exploit code is available.
Fixed versions are available, including roundcube 1.2.3+dfsg.1-4+deb9u9, roundcube 1.2~beta+dfsg.1-0ubuntu1+esm2, roundcube 1.3.17.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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