vciy

CVE-2021-32030

INDEX BUILT · 2026-09-20

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The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra Mini before 3.0.0.4_384_46630 allows authentication bypass…

CVE-2021-320303 of 4 sources documented this
75

rank 75 = 40 + 25 + 0 + 4 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.99393 · CISA KEV listed  ·  without this subject the record ranks 35

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 50

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 75

How much of the world it touches

NVD CPE configurations

2 products in the CPE ranges  ·  without this subject the record ranks 71

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 69

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.96Mover the next 30 days, if this record is yours
Movement+$167,000on 2025-03-23, the last material move, 1 year, 5 months before this reading
Basisassumeda published average, not your estate

$4.96M = $4.99M incident cost x 1 exposure x 0.99393 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

0.99393EPSSKEV · LISTED
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationin the wild · KEVreceipt
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2025-03-17, 536 days at 0.99, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

SonicWall SonicOSConcurrentCVE-2023-28461Fortinet FortiOS,Fortinet FortiOSOracle Payments32030

This record is one instance of CWE-287, improper authentication. The index holds 4978 prior instances of this class, 48 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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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-287 Improper Authenticationreceipt
Published consequencesCWE-287: Integrity, Confidentiality, Availability, Access Control: Read Application Data, Gain Privileges or Assume Identity, Execute Unauthorized Code or Commands[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 branchgt-ac2900 firmware 3.0.0.4.386.42643; lyra mini firmware 3.0.0.4.384.46630receipt
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 2025-06-23receipt
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.receipt
Published to CISA KEV1488 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2025-06-02.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed2025-06-02receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.99393 · top 0.06% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymitrereceipt
Recorded changes57 · last 17 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesAsus lyra mini firmware; Asus gt-ac2900 firmwarereceipt
Published rangesasus lyra mini firmware < 3.0.0.4.384.46630; asus gt-ac2900 firmware < 3.0.0.4.386.42643receipt

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

The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra Mini before 3.0.0.4_384_46630 allows authentication bypass when processing remote input from an unauthenticated user, leading to unauthorized access to the administrator interface. This relates to handle_request in router/httpd/httpd.c and auth_check in web_hook.o. An attacker-supplied value of '\0' matches the device's default value of '\0' in some situations. Note: All versions of Lyra Mini and earlier which are unsupported (End-of-Life, EOL) are also affected by this vulnerability, Consumers can mitigate this vulnerability by disabling the remote access features from WAN. 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-287
affected versions
asus lyra mini firmware < 3.0.0.4.384.46630; asus gt-ac2900 firmware < 3.0.0.4.386.42643
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 asus.com github.com atredis.com asus.com receipt

Dated events

2022-02-04EPSS moved 0.03 to 0.202023-03-07EPSS moved 0.01 to 0.642025-06-02Added to CISA KEV2025-06-23CISA remediation due2026-06-15EPSS moved 0.94 to 0.99

Movement the material steps

7 May 20210.00663
4 Feb 20220.19548 · crossed 0.10
1 Apr 20220.00885 · crossed 0.10
7 Mar 20230.64459 · crossed 0.10 and 0.50 · scoring model v2023.03.01
15 Feb 20240.46335 · crossed 0.50
11 Apr 20240.53618 · crossed 0.50
9 Oct 20240.43839 · crossed 0.50
17 Dec 20240.56821 · crossed 0.50
25 Jan 20250.37502 · crossed 0.50
17 Mar 20250.92835 · crossed 0.50 and 0.90 · scoring model v2025.03.14
20 Mar 20250.89487 · crossed 0.90
23 Mar 20250.92835 · crossed 0.90
15 Jun 20260.99351 · scoring model v2026.06.15
3 Jul 20260.99393
Show all 46 observations
7 May 20210.00663
6 Jan 20220.02909
4 Feb 20220.19548
1 Apr 20220.00885
7 Mar 20230.64459
3 May 20230.66675
2 Jun 20230.68002
29 Jul 20230.65002
26 Aug 20230.66309
7 Sep 20230.68378
19 Oct 20230.61922
11 Dec 20230.65428
25 Dec 20230.62000
20 Jan 20240.57497
15 Feb 20240.46335
14 Mar 20240.48092
11 Apr 20240.53618
24 Apr 20240.50598
22 Jun 20240.55137
7 Aug 20240.52409
9 Oct 20240.43839
13 Nov 20240.43341
17 Dec 20240.56821
21 Jan 20250.53108
25 Jan 20250.37502
7 Feb 20250.36536
23 Feb 20250.40379
17 Mar 20250.92835
20 Mar 20250.89487
23 Mar 20250.92835
26 Mar 20250.93082
27 Mar 20250.93362
29 Mar 20250.93563
30 Mar 20250.93362
13 Apr 20250.93481
23 May 20250.93443
30 May 20250.93043
3 Jun 20250.93861
4 Jun 20250.94175
15 Jun 20250.94215
17 Jul 20250.94157
31 Oct 20250.94215
18 Nov 20250.93104
21 Nov 20250.94215
15 Jun 20260.99351
3 Jul 20260.99393

46 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 0.99393Published2021-05-06CISA KEV2025-06-02Index as of2026-09-04

Listed by CISA 1488 days after it published and the record had been public for 5 years, 3 months when this index was last written.

No material movement in 63 days as of the last ingest this index recorded.

Published 2021-05-06 receipt · CISA KEV 2025-06-02 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-287, improper authentication. The index holds 4978 prior instances of this class, 48 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2024-53704 · SonicWall SonicOSmatches 8 of 8KEV listed · 2025receipt
CVE-2025-61882 · Oracle Concurrent Processingmatches 8 of 8KEV listed · 2025receipt
CVE-2023-28461matches 8 of 8KEV listed · 2023receipt
CVE-2022-40684 · Fortinet FortiOS, FortiProxy…matches 8 of 8KEV listed · 2022receipt
CVE-2020-12812 · Fortinet FortiOSmatches 8 of 8KEV listed · 2020receipt
CVE-2026-46817 · Oracle Paymentsmatches 8 of 8KEV listed · 2026receipt

"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

4978 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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