CVE-2026-20439 (GCVE-0-2026-20439)
Vulnerability from cvelistv5
Published
2026-03-02 08:39
Modified
2026-03-30 13:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
In imgsys, there is a possible system crash due to use after free. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10431955; Issue ID: MSV-5826.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Version: MT2718 Version: MT6899 Version: MT6991 Version: MT8678 Version: MT8793 |
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"metrics": [
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
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"id": "CVE-2026-20439",
"options": [
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"timestamp": "2026-03-02T13:56:59.855391Z",
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"providerMetadata": {
"dateUpdated": "2026-03-02T13:57:05.208Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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"cna": {
"affected": [
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"defaultStatus": "unaffected",
"product": "MediaTek chipset",
"vendor": "MediaTek, Inc.",
"versions": [
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"descriptions": [
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"value": "In imgsys, there is a possible system crash due to use after free. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10431955; Issue ID: MSV-5826."
}
],
"problemTypes": [
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"descriptions": [
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"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
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"type": "CWE"
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"providerMetadata": {
"dateUpdated": "2026-03-30T13:05:49.815Z",
"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"shortName": "MediaTek"
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"references": [
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"url": "https://corp.mediatek.com/product-security-bulletin/March-2026"
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"cveId": "CVE-2026-20439",
"datePublished": "2026-03-02T08:39:19.895Z",
"dateReserved": "2025-11-03T01:30:59.012Z",
"dateUpdated": "2026-03-30T13:05:49.815Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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