FKIE_CVE-2026-3407
Vulnerability from fkie_nvd - Published: 2026-03-02 03:16 - Updated: 2026-06-17 10:43
Severity
Summary
A vulnerability was determined in YosysHQ yosys up to 0.62. This affects the function Yosys::RTLIL::Const::set of the file kernel/rtlil.h of the component BLIF File Parser. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Applying a patch is the recommended action to fix this issue. It appears that the issue is not reproducible all the time.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"modules": [
"BLIF File Parser"
],
"product": "yosys",
"vendor": "YosysHQ",
"versions": [
{
"status": "affected",
"version": "0.1"
},
{
"status": "affected",
"version": "0.2"
},
{
"status": "affected",
"version": "0.3"
},
{
"status": "affected",
"version": "0.4"
},
{
"status": "affected",
"version": "0.5"
},
{
"status": "affected",
"version": "0.6"
},
{
"status": "affected",
"version": "0.7"
},
{
"status": "affected",
"version": "0.8"
},
{
"status": "affected",
"version": "0.9"
},
{
"status": "affected",
"version": "0.10"
},
{
"status": "affected",
"version": "0.11"
},
{
"status": "affected",
"version": "0.12"
},
{
"status": "affected",
"version": "0.13"
},
{
"status": "affected",
"version": "0.14"
},
{
"status": "affected",
"version": "0.15"
},
{
"status": "affected",
"version": "0.16"
},
{
"status": "affected",
"version": "0.17"
},
{
"status": "affected",
"version": "0.18"
},
{
"status": "affected",
"version": "0.19"
},
{
"status": "affected",
"version": "0.20"
},
{
"status": "affected",
"version": "0.21"
},
{
"status": "affected",
"version": "0.22"
},
{
"status": "affected",
"version": "0.23"
},
{
"status": "affected",
"version": "0.24"
},
{
"status": "affected",
"version": "0.25"
},
{
"status": "affected",
"version": "0.26"
},
{
"status": "affected",
"version": "0.27"
},
{
"status": "affected",
"version": "0.28"
},
{
"status": "affected",
"version": "0.29"
},
{
"status": "affected",
"version": "0.30"
},
{
"status": "affected",
"version": "0.31"
},
{
"status": "affected",
"version": "0.32"
},
{
"status": "affected",
"version": "0.33"
},
{
"status": "affected",
"version": "0.34"
},
{
"status": "affected",
"version": "0.35"
},
{
"status": "affected",
"version": "0.36"
},
{
"status": "affected",
"version": "0.37"
},
{
"status": "affected",
"version": "0.38"
},
{
"status": "affected",
"version": "0.39"
},
{
"status": "affected",
"version": "0.40"
},
{
"status": "affected",
"version": "0.41"
},
{
"status": "affected",
"version": "0.42"
},
{
"status": "affected",
"version": "0.43"
},
{
"status": "affected",
"version": "0.44"
},
{
"status": "affected",
"version": "0.45"
},
{
"status": "affected",
"version": "0.46"
},
{
"status": "affected",
"version": "0.47"
},
{
"status": "affected",
"version": "0.48"
},
{
"status": "affected",
"version": "0.49"
},
{
"status": "affected",
"version": "0.50"
},
{
"status": "affected",
"version": "0.51"
},
{
"status": "affected",
"version": "0.52"
},
{
"status": "affected",
"version": "0.53"
},
{
"status": "affected",
"version": "0.54"
},
{
"status": "affected",
"version": "0.55"
},
{
"status": "affected",
"version": "0.56"
},
{
"status": "affected",
"version": "0.57"
},
{
"status": "affected",
"version": "0.58"
},
{
"status": "affected",
"version": "0.59"
},
{
"status": "affected",
"version": "0.60"
},
{
"status": "affected",
"version": "0.61"
},
{
"status": "affected",
"version": "0.62"
}
]
}
],
"source": "cna@vuldb.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was determined in YosysHQ yosys up to 0.62. This affects the function Yosys::RTLIL::Const::set of the file kernel/rtlil.h of the component BLIF File Parser. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Applying a patch is the recommended action to fix this issue. It appears that the issue is not reproducible all the time."
},
{
"lang": "es",
"value": "Se encontr\u00f3 una vulnerabilidad en YosysHQ yosys hasta la versi\u00f3n 0.62, la cual afeacta a la funci\u00f3n Yosys::RTLIL::Const::set del archivo kernel/rtlil.h del componente BLIF File Parser. Su manipulaci\u00f3n provoca un desbordamiento de b\u00fafer basado en mont\u00edculo. Es posible lanzar el ataque en el host local. El exploit ha sido divulgado p\u00fablicamente y puede ser utilizado. Se recomienda aplicar un parche para solucionar este problema. Parece que el problema no es reproducible todo el tiempo."
}
],
"id": "CVE-2026-3407",
"lastModified": "2026-06-17T10:43:33.230",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 1.7,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.1,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "cna@vuldb.com",
"type": "Secondary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 3.3,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 1.4,
"source": "cna@vuldb.com",
"type": "Secondary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 1.9,
"baseSeverity": "LOW",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "PROOF_OF_CONCEPT",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "cna@vuldb.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-3407",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-02T14:40:14.679910Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-03-02T03:16:01.600",
"references": [
{
"source": "cna@vuldb.com",
"url": "https://github.com/YosysHQ/yosys/"
},
{
"source": "cna@vuldb.com",
"url": "https://github.com/YosysHQ/yosys/issues/5677"
},
{
"source": "cna@vuldb.com",
"url": "https://github.com/YosysHQ/yosys/pull/5680"
},
{
"source": "cna@vuldb.com",
"url": "https://github.com/YosysHQ/yosys/pull/5681"
},
{
"source": "cna@vuldb.com",
"url": "https://github.com/oneafter/0210/blob/main/yo2/repro"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/?ctiid.348302"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/?id.348302"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/?submit.763755"
}
],
"sourceIdentifier": "cna@vuldb.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-119"
},
{
"lang": "en",
"value": "CWE-122"
}
],
"source": "cna@vuldb.com",
"type": "Secondary"
}
]
}
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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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