CVE-2026-12001 (GCVE-0-2026-12001)
Vulnerability from cvelistv5 – Published: 2026-07-27 20:08 – Updated: 2026-08-11 21:03
VLAI
EPSS
VEX
Title
Hardcoded Credential Vulnerability in Multiple TP-Link Router Models
Summary
A hardcoded credential
vulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, TL-WR902AC v4, Archer C20 v6 & Archer MR200 v5). Authentication-related credential material is
embedded within a password file in the firmware image and may be recovered
through firmware analysis.
Successful
exploitation could result in unauthorized access to privileged functions on
affected devices.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 15:09 UTC
CWE
- CWE-798 - Use of Hard-coded Credentials
Assigner
References
11 references
Impacted products
5 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| TP-Link Systems Inc. | TL-WR850N v3 |
Affected:
0 , < TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048
(custom)
|
guessed | |
| TP-Link Systems Inc. | Archer C20 v6 |
Affected:
0 , < Archer C20(US)_V6_250630
(custom)
|
guessed | |
| TP Link Systems Inc. | TL-WR845N v4 |
Affected:
0 , < TL-WR845N(UN)_V4_250401
(custom)
|
guessed | |
| TP-Link Systems Inc. | Archer MR200 v5 |
Affected:
0 , < EU_V5.20_1.3.0 Build 260319
(custom)
|
guessed | |
| TP Link Systems Inc. | TL-WR902AC v4 |
Affected:
0 , < US_V4_0.9.1 Build 260810
(custom)
Affected: 0 , < EU_V4_0.9.3 Build 260728 (custom) |
guessed |
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"shortName": "TPLink"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://www.tp-link.com/us/support/faq/5210/"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/us/support/download/tl-wr902ac/v4/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/tl-wr902ac/v4/#Firmware"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Hardcoded Credential Vulnerability in Multiple TP-Link Router Models",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"assignerShortName": "TPLink",
"cveId": "CVE-2026-12001",
"datePublished": "2026-07-27T20:08:50.230Z",
"dateReserved": "2026-06-11T16:23:35.413Z",
"dateUpdated": "2026-08-11T21:03:54.866Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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