CVE-2021-47786 (GCVE-0-2021-47786)
Vulnerability from cvelistv5 – Published: 2026-01-15 23:25 – Updated: 2026-04-07 14:06
VLAI
EPSS
VEX
Title
Redragon Gaming Mouse - 'REDRAGON_MOUSE.sys' Denial of Service (PoC)
Summary
Redragon Gaming Mouse driver contains a kernel-level vulnerability that allows attackers to trigger a denial of service by sending malformed IOCTL requests. Attackers can send a crafted 2000-byte buffer with specific byte patterns to the REDRAGON_MOUSE device to crash the kernel driver.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-16 15:54 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/50322 | exploit |
| https://www.redragonzone.com/ | product |
| https://github.com/Quadron-Research-Lab/Kernel_Dr… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/redragon-gam… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Redragon | Redragon Gaming Mouse |
Affected:
all version
|
guessed |
Date Public
2021-09-23 00:00
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"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47786.json",
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"metrics": [
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{
"name": "Vendor Download Page",
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"url": "https://www.redragonzone.com/"
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{
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"tags": [
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}
],
"title": "Redragon Gaming Mouse - \u0027REDRAGON_MOUSE.sys\u0027 Denial of Service (PoC)",
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}
},
"cveMetadata": {
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"cveId": "CVE-2021-47786",
"datePublished": "2026-01-15T23:25:39.342Z",
"dateReserved": "2026-01-14T14:39:44.738Z",
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"state": "PUBLISHED"
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"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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