vciy

CVE-2021-32706

INDEX BUILT · 2026-09-20

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(Authenticated) Remote Code Execution Possible in Web Interface 5.5

CVE-2021-327064 of 4 sources documented this
39

rank 39 = 15 + 22 + 0 + 2 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.60181  ·  without this subject the record ranks 24

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, from NVD  ·  without this subject the record ranks 17

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 39

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 37

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 39

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.40Mover the next 30 days, if this record is yours
Movement-$1.06Mon 2022-04-01, the last material move, 4 years, 2 months before this reading
Basisassumeda published average, not your estate

$2.40M = $4.99M incident cost x 0.8004932139359172 exposure x 0.60181 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

0.60181EPSSNOT IN KEVas of 2026-09-20
Severity7.6 HIGHreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2025-03-30, 442 days at 0.60, as of 2026-06-15. arc-rules@v1

Foresight · where to check next

MicrosoftDotNetNuke CMSActiveMQ BrokerSonicWall SMA1000langflow-aiRejetto HTTP File32706

This record is one instance of CWE-94, improper control of generation of code ('code injection'). The index holds 7185 prior instances of this class, 79 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

Sources disagree here.

Severity score
GitHub_M7.6 HIGHreceipt
NVD8.8 HIGHreceipt
What it costs
GitHub_MPartial confidentiality and integrity loss; complete availability lossreceipt
NVDComplete confidentiality, integrity and availability lossreceipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · low privileges required · no user interaction · low attack complexityreceipt
ImpactPartial confidentiality and integrity loss; complete availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-94 Improper Control of Generation of Code ('Code Injection')receipt
Published consequencesCWE-94: Access Control: Bypass Protection Mechanism; Access Control: Gain Privileges or Assume Identity; Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

First unaffected version, by branchpi-hole 5.5.1receipt
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.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA7.6 HIGHreceipt
CVSS, NVD8.8 HIGHreceipt
Exploit probability0.60181 · top 0.91% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byGitHub_Mreceipt
Recorded changes26 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productpi-hole AdminLTEreceipt
Published rangespi-hole < 5.5.1receipt

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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Attack path

Network requestrequires low privilegespi-hole AdminLTECWE-94 code injectionAvailability lossA:Hexploits CWE-94data compromise

What it is stated by the CNA

Pi-hole's Web interface provides a central location to manage a Pi-hole instance and review performance statistics. Prior to Pi-hole Web interface version 5.5.1, the `validDomainWildcard` preg_match filter allows a malicious character through that can be used to execute code, list directories, and overwrite sensitive files. The issue lies in the fact that one of the periods is not escaped, allowing any character to be used in its place. A patch for this vulnerability was released in version 5.5.1. receipt

NVD's analysis a second authority

severity
8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-94
affected versions
pi-hole < 5.5.1
also scored by
[email protected] 7.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

The CNA scored it 7.6 and NVD 8.8. Both are shown because both were published; we do not pick one.

check it yourself github.com github.com receipt

Dated events

2022-01-13EPSS moved 0.05 to 0.282025-03-17EPSS moved 0.02 to 0.662025-11-21EPSS moved 0.52 to 0.59

Movement the material steps

5 Aug 20210.01163
13 Jan 20220.28065 · crossed 0.10
1 Apr 20220.09112 · crossed 0.10
7 Mar 20230.00566 · scoring model v2023.03.01
17 Mar 20250.66007 · crossed 0.10 and 0.50 · scoring model v2025.03.14
18 Nov 20250.51745
15 Jun 20260.60181 · scoring model v2026.06.15
Show all 26 observations
5 Aug 20210.01163
6 Jan 20220.05015
13 Jan 20220.28065
4 Feb 20220.35705
1 Apr 20220.09112
7 Mar 20230.00566
24 Apr 20230.00511
24 May 20230.00444
20 Jul 20230.00523
31 Aug 20230.00460
28 Sep 20230.00429
31 Jan 20240.00861
30 May 20240.00883
5 Nov 20240.01247
7 Dec 20240.01246
17 Dec 20240.02053
22 Dec 20240.01827
17 Mar 20250.66007
29 Mar 20250.70916
30 Mar 20250.66007
28 Apr 20250.61046
31 May 20250.59444
18 Nov 20250.51745
21 Nov 20250.59444
18 Feb 20260.61046
15 Jun 20260.60181

26 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 0.60181Published2021-08-04Index as of2026-06-15

The record had been public for 4 years, 10 months when this index was last written.

Published 2021-08-04 receipt · Index as of 2026-06-15 derived

The pattern, elsewhere

This record is one instance of CWE-94, improper control of generation of code ('code injection'). The index holds 7185 prior instances of this class, 79 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-49704 · Microsoft SharePoint Enterprise Server 2016matches 6 of 9KEV listed · 2025receipt
CVE-2017-9822 · DotNetNuke CMS Fixed in 9.1.1matches 6 of 9KEV listed · 2017receipt
CVE-2026-34197 · Apache ActiveMQ Brokermatches 6 of 9KEV listed · 2026receipt
CVE-2026-15410 · SonicWall SMA1000matches 5 of 9KEV listed · 2026receipt
CVE-2025-3248 · langflow-ai langflowmatches 5 of 9KEV listed · 2025receipt
CVE-2024-23692 · Rejetto HTTP File Servermatches 5 of 9KEV listed · 2024receipt

"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

7185 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.

Siblings and hubs

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