vciy

CVE-2020-9375

INDEX BUILT · 2026-09-20

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TP-Link Archer C50 V3 devices before Build 200318 Rel

CVE-2020-93753 of 4 sources documented this
44

rank 44 = 19 + 19 + 1 + 5 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.26682  ·  without this subject the record ranks 25

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.5, from NVD  ·  without this subject the record ranks 25

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-09-07  ·  without this subject the record ranks 43

How much of the world it touches

NVD CPE configurations

3 products in the CPE ranges  ·  without this subject the record ranks 39

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 44

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$815,000over the next 30 days, if this record is yours
Movement+$105,000on 2025-01-29, the last material move, 1 year, 6 months before this reading
Basisassumeda published average, not your estate

$815,000 = $4.99M incident cost x 0.6121449559255632 exposure x 0.26682 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

0.26682EPSSNOT IN KEVas of 2026-09-20
Severity7.5 HIGHreceipt
Harmunauthenticated · networkreceipt
Exploitationpublic proof-of-conceptreceipt
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2025-03-17, 516 days at 0.27, as of 2026-08-15. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Check a version against this record

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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What counts as a move

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-772 Missing Release of Resource after Effective Lifetimereceipt
Published consequencesCWE-772: Availability: DoS: Resource Consumption (Other), DoS: Resource Consumption (Memory), DoS: Resource Consumption (CPU)[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 15 Aug 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: Proof-of-concept published · 1 public repository, 2020-03-25.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 1 public repository2020-03-25receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD7.5 HIGHreceipt
Exploit probability0.26682 · top 2% of all CVEsreceipt
Blast breadth3 products across 1 vendorderived
Assigned bymitrereceipt
Recorded changes34 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesTp-link archer c50 build_170822; Tp-link archer c50 build_171227; Tp-link archer c50 build_200318receipt
Published rangestp-link archer c50 build_170822; tp-link archer c50 build_171227; tp-link archer c50 build_200318receipt

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

TP-Link Archer C50 V3 devices before Build 200318 Rel. 62209 allows remote attackers to cause a denial of service via a crafted HTTP Header containing an unexpected Referer field. receipt

NVD's analysis a second authority

severity
7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
weakness
CWE-772
affected versions
tp-link archer c50 build_170822; tp-link archer c50 build_171227; tp-link archer c50 build_200318

check it yourself thewhiteh4t.github.io tp-link.com packetstormsecurity.com thewhiteh4t.github.io receipt

Dated events

2022-02-04EPSS moved 0.06 to 0.152025-03-17EPSS moved 0.10 to 0.252025-11-21EPSS moved 0.21 to 0.31

Movement the material steps

14 Apr 20210.05581
4 Feb 20220.15118 · crossed 0.10
7 Mar 20230.04974 · crossed 0.10 · scoring model v2023.03.01
21 Oct 20230.11769 · crossed 0.10
17 Dec 20240.09176 · crossed 0.10
29 Jan 20250.13269 · crossed 0.10
17 Mar 20250.24655 · scoring model v2025.03.14
15 Jun 20260.28223 · scoring model v2026.06.15
15 Aug 20260.26682
Show all 31 observations
14 Apr 20210.05581
4 Feb 20220.15118
7 Mar 20230.04974
28 Apr 20230.05736
27 May 20230.06458
12 Jul 20230.06802
13 Aug 20230.07796
15 Sep 20230.08668
21 Oct 20230.11769
7 Nov 20230.15751
28 Jan 20240.20709
20 Nov 20240.21766
17 Dec 20240.09176
13 Jan 20250.09826
29 Jan 20250.13269
14 Feb 20250.14273
4 Mar 20250.10078
17 Mar 20250.24655
19 Mar 20250.3313
20 Mar 20250.24655
27 Mar 20250.3313
28 Mar 20250.24655
29 Mar 20250.3313
30 Mar 20250.24655
3 Jul 20250.26509
7 Sep 20250.30961
18 Nov 20250.20806
21 Nov 20250.30961
4 Jan 20260.28044
15 Jun 20260.28223
15 Aug 20260.26682

31 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 0.26682Published · Public PoC2020-03-25Index as of2026-08-15

The record had been public for 6 years, 4 months when this index was last written.

Published 2020-03-25 receipt · Public PoC 2020-03-25 receipt · Index as of 2026-08-15 derived

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