vciy

CVE-2021-44026

INDEX BUILT · 2026-09-20

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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.

CVE-2021-440263 of 4 sources documented this
80

rank 80 = 40 + 25 + 2 + 7 + 6

rank@v1 · act now

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.41856 · CISA KEV listed  ·  without this subject the record ranks 40

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from NVD  ·  without this subject the record ranks 55

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-12-19  ·  without this subject the record ranks 78

How much of the world it touches

NVD CPE configurations

7 products in the CPE ranges  ·  without this subject the record ranks 73

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 74

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.09Mover the next 30 days, if this record is yours
Movement-$187,000on 2023-07-08, the last material move, 3 years, 1 month before this reading
Basisassumeda published average, not your estate

$2.09M = $4.99M incident cost x 1 exposure x 0.41856 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.41856EPSSKEV · LISTED
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationin the wild · KEVreceipt
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 81 days at 0.42, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

FortinetProgress SoftwareCVE-2023-34362SonicWall SMA100SonicWallCVE-2021-4225844026

This record is one instance of CWE-89, improper neutralization of special elements used in an sql command ('sql injection'). The index holds 20888 prior instances of this class, 30 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')receipt
Published consequencesCWE-89: Confidentiality, Integrity, Availability: Execute Unauthorized Code or Commands; Confidentiality: Read Application Data; Authentication: Gain Privileges or Assume Identity, Bypass Protection…[email protected]
Ransomware campaign useUnknown to CISAreceipt

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

First unaffected version, by branchwebmail 1.3.17; webmail 1.4.12receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.
CISA remediation statusoverdue since 2023-07-13receipt
CISA required actionApply updates per vendor instructions.receipt
Published to CISA KEV580 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2023-06-22.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 2 public repositories2025-04-02receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2023-06-22receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.41856 · top 1% of all CVEsreceipt
Blast breadth3 products across 3 vendorsderived
Assigned bymitrereceipt
Recorded changes74 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesRoundcube webmail; Debian linux; Fedoraproject fedorareceipt
Published rangesroundcube webmail < 1.3.17; roundcube webmail >= 1.4.0 < 1.4.12; fedoraproject fedora 33; fedoraproject fedora 34receipt
Show all 7 published ranges
roundcube webmail < 1.3.17
roundcube webmail >= 1.4.0 < 1.4.12
fedoraproject fedora 33
fedoraproject fedora 34
debian linux 9.0
debian linux 10.0
debian linux 11.0

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

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. receipt

NVD's analysis a second authority

severity
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-89
affected versions
roundcube webmail < 1.3.17; roundcube webmail >= 1.4.0 < 1.4.12; fedoraproject fedora 33; and 4 more, listed in full below
also scored by
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself bugs.debian.org github.com github.com lists.fedoraproject.org lists.fedoraproject.org debian.org +1 morereceipt

Dated events

2022-01-06EPSS moved 0.02 to 0.072023-06-22Added to CISA KEV2023-07-13CISA remediation due2025-03-17EPSS moved 0.02 to 0.632026-06-15EPSS moved 0.73 to 0.43

Movement the material steps

19 Nov 20210.00833
4 Feb 20220.17909 · crossed 0.10
1 Apr 20220.01108 · crossed 0.10
7 Mar 20230.00489 · scoring model v2023.03.01
23 Jun 20230.10258 · crossed 0.10
8 Jul 20230.09930 · crossed 0.10
17 Mar 20250.63357 · crossed 0.10 and 0.50 · scoring model v2025.03.14
19 Mar 20250.82687
20 Mar 20250.72331
27 Mar 20250.82687
28 Mar 20250.72331
29 Mar 20250.82687
30 Mar 20250.72331
19 Oct 20250.60331
18 Apr 20260.72527
15 Jun 20260.42908 · crossed 0.50 · scoring model v2026.06.15
2 Sep 20260.41856
Show all 60 observations
19 Nov 20210.00833
24 Nov 20210.01247
28 Nov 20210.01454
7 Dec 20210.01659
6 Jan 20220.07038
4 Feb 20220.17909
1 Apr 20220.01108
7 Mar 20230.00489
1 May 20230.00522
11 Jun 20230.00519
23 Jun 20230.10258
26 Jun 20230.13670
8 Jul 20230.09930
10 Jul 20230.08305
8 Nov 20230.00842
22 Mar 20240.00594
3 May 20240.00596
30 May 20240.00435
28 Jun 20240.01441
4 Aug 20240.01430
17 Dec 20240.02018
17 Mar 20250.63357
19 Mar 20250.82687
20 Mar 20250.72331
27 Mar 20250.82687
28 Mar 20250.72331
29 Mar 20250.82687
30 Mar 20250.72331
9 Apr 20250.70237
15 May 20250.71497
18 May 20250.71667
23 May 20250.71898
5 Jun 20250.71497
15 Jun 20250.71898
18 Jun 20250.71497
9 Jul 20250.68079
16 Jul 20250.68761
18 Jul 20250.68575
25 Jul 20250.68761
31 Jul 20250.68575
13 Aug 20250.6813
15 Sep 20250.68342
1 Oct 20250.66139
11 Oct 20250.65915
18 Oct 20250.62372
19 Oct 20250.60331
22 Oct 20250.62465
27 Oct 20250.64854
28 Oct 20250.62465
5 Nov 20250.56992
13 Nov 20250.51306
18 Nov 20250.58175
21 Nov 20250.51306
19 Dec 20250.64041
27 Dec 20250.63711
28 Dec 20250.64041
18 Apr 20260.72527
15 Jun 20260.42908
3 Jul 20260.42751
2 Sep 20260.41856

60 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.41856Published2021-11-19CISA KEV2023-06-22Public PoC2025-04-02Index as of2026-09-04

Listed by CISA 580 days after it published and the record had been public for 4 years, 9 months when this index was last written.

Published 2021-11-19 receipt · CISA KEV 2023-06-22 receipt · Public PoC 2025-04-02 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-89, improper neutralization of special elements used in an sql command ('sql injection'). The index holds 20888 prior instances of this class, 30 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2023-48788 · Fortinet FortiClientEMSmatches 8 of 8KEV listed · 2024receipt
CVE-2024-6670 · Progress Software Corporation WhatsUp Goldmatches 8 of 8KEV listed · 2024receipt
CVE-2023-34362matches 8 of 8KEV listed · 2023receipt
CVE-2021-20016 · SonicWall SMA100matches 8 of 8KEV listed · 2021receipt
CVE-2021-20028 · SonicWall SRA/SMA100matches 8 of 8KEV listed · 2021receipt
CVE-2021-42258matches 8 of 8KEV listed · 2021receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

20888 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

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What usually comes next

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