NVD / CVE Program· CNA mitre

CVE-2021-44026: 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.

CriticalCVSS 9.8 · v3.1KEVWeaponized Fix available

Noroxi assessment

Priority: Now (action score 90/100)

CISA has confirmed exploitation in the wild (Jun 22, 2023). Remediation deadline for US federal agencies: Jul 13, 2023.
Probability of exploitation in the next 30 days: 69.8% (FIRST EPSS); higher than 99.3% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
Fixed version: roundcube (Debian:10) 1.3.17+dfsg.1-1~deb10u1; roundcube (Debian:11) 1.4.12+dfsg.1-1~deb11u1; roundcube (Debian:12) 1.5.0+dfsg.1-1.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Patch today or shut off access. Upgrade to roundcube (Debian:10) 1.3.17+dfsg.1-1~deb10u1; roundcube (Debian:11) 1.4.12+dfsg.1-1~deb11u1; roundcube (Debian:12) 1.5.0+dfsg.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

Published: Nov 19, 2021
Updated: Jun 17, 2026
EPSS: 69.8% · 99th percentile
CWE: CWE-89

Report tools

JSON

Action score

Now

Patch today or shut off access.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 30 / 30 · Listed
EPSS: 21 / 30 · 69.8%

CISA SSVC decision

Exploitation: active
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Jun 22, 2023. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Jul 13, 2023.

Get told when this record changes

In CISA KEV: exploitation in the wild confirmed
Weaponized exploit exists
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
roundcube	webmail	cpe:2.3:a:roundcube:webmail
fedoraproject	fedora	cpe:2.3:o:fedoraproject:fedora
debian	debian linux	cpe:2.3:o:debian:debian_linux

Using webmail? Add it to your stack and be the first to know about CVEs like this one. (Email server)

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

roundcube webmailbefore 1.3.17
roundcube webmail1.4.0 and later · before 1.4.12

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:10	roundcube	before 1.3.17+dfsg.1-1~deb10u1	1.3.17+dfsg.1-1~deb10u1
Debian:11	roundcube	before 1.4.12+dfsg.1-1~deb11u1	1.4.12+dfsg.1-1~deb11u1
Debian:12	roundcube	before 1.5.0+dfsg.1-1	1.5.0+dfsg.1-1
Debian:9	roundcube	before 1.2.3+dfsg.1-4+deb9u9	1.2.3+dfsg.1-4+deb9u9

Same product

roundcube: all records

Other highest-scoring records for the same primary product.

CVE-2025-49113Roundcube 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…KEV
95Now
CVE-2020-12641rcube_image.php in Roundcube Webmail before 1.4.4 allows attackers to execute arbitrary code via shell metacharacters in a configuration…KEV
94Now
CVE-2024-42009A Cross-Site Scripting vulnerability in Roundcube through 1.5.7 and 1.6.x through 1.6.7 allows a remote attacker to steal and send emails…KEV
92Now

Published before and after this one in the same product

← EarlierCVE-2020-18671Jun 24, 2021 · Cross Site Scripting (XSS) vulnerability in Roundcube Mail <=1.4.4 via smtp config in /installer/test.php.
21Monitor
← EarlierCVE-2021-44025Nov 19, 2021 · Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to XSS in handling an attachment's filename extension when displaying a MIME type…
24Monitor
Later →CVE-2023-43770Sep 22, 2023 · Roundcube before 1.4.14, 1.5.x before 1.5.4, and 1.6.x before 1.6.3 allows XSS via text/plain e-mail messages with crafted links because of…KEV
73This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
debian:roundcube	1.5.0+dfsg.1-1 · Debian:12	Package registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

Proof-of-concept repository on GitHub ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:0	2025-04-02
Proof-of-concept repository on GitHub	stars:0	2025-04-20

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedNov 19, 2021
CISA KEVJun 22, 2023+580 d
First PoCApr 2, 2025+1230 d
TodayNov 14, 2026+1821 d

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Bug bounty scope

NextcloudHackerOne · paid

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-21-0951 · Nov 29, 2021(Debian Güvenlik Güncellemesi)

All national notices →

Not on record for this CVE: researcher credit · variant or chain candidate.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSS vector

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

nvd-primary

Root cause

The query text is built by concatenating user input. The database cannot tell where the data ends and the command begins.

The bug in code

The whole CWE-89 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const owner = req.query.owner;
2const rows = await db.query(
3  "SELECT * FROM files WHERE owner = '" + owner + "'"
4);

Fixed

1const owner = req.query.owner;
2const rows = await db.query(
3  "SELECT * FROM files WHERE owner = $1",
4  [owner]
5);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log (1)

Fix✗ → ✓Sep 28, 2026, 10:48 PM UTC

For records you follow, these changes also arrive as notifications. →

References

bugs.debian.org/1000156

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

What does it mean in your environment?

We use this product, ask for help

Data sources and verification

CNA: mitre

CVE.org (CNA)Oct 21, 2025, 11:25 PM UTC
CISA ADPOct 21, 2025, 11:25 PM UTC
NVDJun 17, 2026, 12:11 AM UTC
FIRST EPSSNov 11, 2026, 12:00 AM UTC
OSV / GHSANov 13, 2026, 3:18 AM UTC
PoC-in-GitHubNov 13, 2026, 3:18 AM UTC

Each line is when that source was last processed for this record.

CVE-2021-44026: 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.

Noroxi assessment

Get told when this record changes

Follow CVE-2021-44026

What does it mean in your environment?

Affected systems

Is your version affected?

Watch new CVEs for webmail

Affected versions

Package-level exposure

Same product

Remediation

Which version to upgrade to

Exploit status

Research context

Timeline

Patch and commit links

National notice (Türkiye Cybersecurity Directorate / USOM)

Technical details

Attack conditions

If successful

Root cause

The bug in code

Attack context

References