CVE-2026-86315 (GCVE-0-2026-86315)
Vulnerability from cvelistv5 – Published: 2026-09-07 04:01 – Updated: 2026-09-07 04:01
VLAI
EPSS
VEX
Summary
An out-of-bounds write caused by numeric truncation Samsung Open Source Escargot on Linux x86-64 allows an attacker who can supply JavaScript for execution to corrupt native memory and crash the host process via a crafted class definition whose instance initialization entry count exceeds UINT16_MAX.
This issue affects Escargot: 5dc93606abd42b859045add05d704a038e197359.
Severity
6.2 (Medium)
CWE
- CWE-197 - Numeric truncation error
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Samsung Opensource | Escargot |
Affected:
5dc93606abd42b859045add05d704a038e197359
|
guessed |
{
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"versions": [
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"impacts": [
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"capecId": "CAPEC-100",
"descriptions": [
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}
]
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"metrics": [
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"scenarios": [
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"problemTypes": [
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"descriptions": [
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"providerMetadata": {
"dateUpdated": "2026-09-07T04:01:28.554Z",
"orgId": "ca193ba2-0cff-4e34-b04e-1ea07103c6fe",
"shortName": "samsung.tv_appliance"
},
"references": [
{
"url": "https://github.com/Samsung/escargot/pull/1660"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
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},
"cveMetadata": {
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"cveId": "CVE-2026-86315",
"datePublished": "2026-09-07T04:01:28.554Z",
"dateReserved": "2026-09-07T03:41:59.466Z",
"dateUpdated": "2026-09-07T04:01:28.554Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-86315",
"date": "2026-09-07",
"epss": "0.00123",
"percentile": "0.02372"
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"nvd": "{\"cve\":{\"id\":\"CVE-2026-86315\",\"sourceIdentifier\":\"PSIRT@samsung.com\",\"published\":\"2026-09-07T04:17:55.650\",\"lastModified\":\"2026-09-07T04:17:55.650\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An out-of-bounds write caused by numeric truncation Samsung Open Source Escargot on Linux x86-64 allows an attacker who can supply JavaScript for execution to corrupt native memory and crash the host process via a crafted class definition whose instance initialization entry count exceeds UINT16_MAX.\\n\\n\\n\\nThis issue affects Escargot: 5dc93606abd42b859045add05d704a038e197359.\"}],\"affected\":[{\"source\":\"PSIRT@samsung.com\",\"affectedData\":[{\"vendor\":\"Samsung Opensource\",\"product\":\"Escargot\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"5dc93606abd42b859045add05d704a038e197359\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"PSIRT@samsung.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.2,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.5,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"PSIRT@samsung.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-197\"}]}],\"references\":[{\"url\":\"https://github.com/Samsung/escargot/pull/1660\",\"source\":\"PSIRT@samsung.com\"}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-09-07T04:54:50+00:00",
"cve": "CVE-2026-86315",
"id": "CVE-2026-86315",
"initial_release_date": "2026-09-07T04:01:28.554000+00:00",
"product_status:known_affected": "70",
"product_status:known_not_affected": "7",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Escargot: Escargot: Out-of-bounds write leads to Denial of Service",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-86315.json",
"version": "3"
}
}
}
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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.
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.
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