vciy

CVE-2024-54126

INDEX BUILT · 2026-09-20

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Insufficient Integrity Verification Vulnerability in TP-Link Archer C50

CVE-2024-541263 of 4 sources documented this
21

rank 21 = 0 + 21 + 0 + 0 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.00146  ·  without this subject the record ranks 21

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.5, from the CNA  ·  without this subject the record ranks 0

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 21

How much of the world it touches

NVD CPE configurations

0 products in the CPE ranges  ·  without this subject the record ranks 21

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 21

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$7,290over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$7,290 = $4.99M incident cost x 1 exposure x 0.00146 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

0.00146EPSSNOT IN KEVas of 2026-09-20
Severity8.5 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2024-12-07, 646 days at 0.00, as of 2026-09-14. arc-rules@v1

Foresight · where to check next

notepad-plus-plusTrueConf ClientFortinet FortiOSCVE-2022-4079954126

This record is one instance of CWE-494, download of code without integrity check. The index holds 238 prior instances of this class, 4 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

Running TP-Link Archer C50 Wireless Router? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

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AcceptDeferPatch by…Not affectedMitigated

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachreachable from an adjacent network · high privileges required · no user interaction · low attack complexity · no attack requirementsreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v4.0 · the CNA's vectorreceipt
Weakness classCWE-494 Download of Code Without Integrity Check; CWE-347 Improper Verification of Cryptographic Signaturereceipt
Published consequencesCWE-494: Integrity, Availability, Confidentiality, Other: Execute Unauthorized Code or Commands, Alter Execution Logic, Other[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed inNo fix version in held sources, as the index stood on 14 Sep 2026.
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 CNA8.5 HIGHreceipt
Exploit probability0.00146 · top 96% of all CVEsreceipt
Assigned byCERT-Inreceipt
Recorded changes23 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productTP-Link Archer C50 Wireless Routerreceipt

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

This vulnerability exists in the TP-Link Archer C50 due to improper signature verification mechanism in the firmware upgrade process at its web interface. An attacker with administrative privileges within the router’s Wi-Fi range could exploit this vulnerability by uploading and executing malicious firmware which could lead to complete compromise of the targeted device. receipt

NVD's analysis a second authority

weakness
CWE-347; CWE-494
also scored by
[email protected] 8.5 CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

check it yourself cert-in.org.in receipt

Movement the material steps

7 Dec 20240.00043
17 Mar 20254e-05 · scoring model v2025.03.14
15 Jun 20260.00138 · scoring model v2026.06.15
14 Sep 20260.00146
Show all 23 observations
7 Dec 20240.00043
17 Mar 20254e-05
19 Mar 20255e-05
29 Mar 20256e-05
30 Mar 20255e-05
6 Apr 20257e-05
3 May 20256e-05
4 May 20257e-05
15 May 20258e-05
1 Jul 20259e-05
11 Jul 20250.0001
10 Aug 20250.00011
31 Aug 20250.00013
18 Nov 20250.00015
21 Nov 20250.00013
13 Jan 20260.00026
17 Jan 20260.00023
18 Jan 20260.00024
19 Jan 20260.00025
26 Apr 20260.00029
15 Jun 20260.00138
30 Jun 20260.0014
14 Sep 20260.00146

23 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 0.00146Published2024-12-05Index as of2026-09-14

The record had been public for 1 year, 9 months when this index was last written.

Published 2024-12-05 receipt · Index as of 2026-09-14 derived

The pattern, elsewhere

This record is one instance of CWE-494, download of code without integrity check. The index holds 238 prior instances of this class, 4 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-15556 · notepad-plus-plusmatches 4 of 10KEV listed · 2026receipt
CVE-2026-3502 · TrueConf Clientonly 2 attributes comparableKEV listed · 2026receipt
CVE-2021-44168 · Fortinet FortiOSonly 2 attributes comparableKEV listed · 2022receipt
CVE-2022-40799only 1 attribute comparableKEV listed · 2022receipt

"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

238 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

Records related to this one

Fixed with these, by one advisory

Listed because one advisory covers them, not because they are the same defect. Each record's own state is on its own page.

Grouping: held values

Browse the index from here

These are index-wide views, not findings about CVE-2024-54126.

What usually comes next

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