CVE-2026-0866 (GCVE-0-2026-0866)
Vulnerability from cvelistv5 – Published: – Updated: 2026-03-18 19:50
VLAI
EPSS
VEX
After the publication of the PoC by the researcher and further analysis, we have determined that this issue does not constitute a valid vulnerability. The technique described is an obfuscation method and does not bypass or impact any implicit or explicit security controls.
Show details on NVD website{
"containers": {
"cna": {
"providerMetadata": {
"dateUpdated": "2026-03-18T19:50:41.341Z",
"orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"shortName": "certcc"
},
"rejectedReasons": [
{
"lang": "en",
"value": "After the publication of the PoC by the researcher and further analysis, we have determined that this issue does not constitute a valid vulnerability. The technique described is an obfuscation method and does not bypass or impact any implicit or explicit security controls."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"assignerShortName": "certcc",
"cveId": "CVE-2026-0866",
"dateRejected": "2026-03-18T19:50:41.341Z",
"dateReserved": "2026-01-12T19:26:35.518Z",
"dateUpdated": "2026-03-18T19:50:41.341Z",
"state": "REJECTED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": {
"cve": {
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Rejected reason: After the publication of the PoC by the researcher and further analysis, we have determined that this issue does not constitute a valid vulnerability. The technique described is an obfuscation method and does not bypass or impact any implicit or explicit security controls."
}
],
"id": "CVE-2026-0866",
"lastModified": "2026-03-18T20:16:19.150",
"metrics": {},
"published": "2026-03-18T20:16:19.150",
"references": [],
"sourceIdentifier": "cret@cert.org",
"vulnStatus": "Rejected"
}
}
}
}
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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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