FKIE_CVE-2026-20489
Vulnerability from fkie_nvd - Published: 2026-08-03 03:16 - Updated: 2026-08-19 16:46
Severity
Summary
In display, there is a possible information disclosure due to an integer overflow. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11004274; Issue ID: MSV-7749.
References
| URL | Tags | ||
|---|---|---|---|
| security@mediatek.com | https://www.mediatek.com/product-security-bulletin/August-2026 | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mediatek | mt6991_firmware | - | |
| mediatek | mt6991 | - | |
| mediatek | mt6993_firmware | - | |
| mediatek | mt6993 | - | |
| mediatek | mt8126_firmware | - | |
| mediatek | mt8126 | - | |
| mediatek | mt8171_firmware | - | |
| mediatek | mt8171 | - | |
| mediatek | mt8188_firmware | - | |
| mediatek | mt8188 | - | |
| mediatek | mt8189_firmware | - | |
| mediatek | mt8189 | - | |
| mediatek | mt8367_firmware | - | |
| mediatek | mt8367 | - | |
| mediatek | mt8668_firmware | - | |
| mediatek | mt8668 | - | |
| mediatek | mt8676_firmware | - | |
| mediatek | mt8676 | - | |
| mediatek | mt8678_firmware | - | |
| mediatek | mt8678 | - | |
| mediatek | mt8766_firmware | - | |
| mediatek | mt8766 | - | |
| mediatek | mt8768_firmware | - | |
| mediatek | mt8768 | - | |
| mediatek | mt8781_firmware | - | |
| mediatek | mt8781 | - | |
| mediatek | mt8786_firmware | - | |
| mediatek | mt8786 | - | |
| mediatek | mt8791t_firmware | - | |
| mediatek | mt8791t | - | |
| mediatek | mt8799_firmware | - | |
| mediatek | mt8799 | - | |
| mediatek | mt8910_firmware | - | |
| mediatek | mt8910 | - |
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"value": "In display, there is a possible information disclosure due to an integer overflow. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11004274; Issue ID: MSV-7749."
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"id": "CVE-2026-20489",
"lastModified": "2026-08-19T16:46:54.490",
"metrics": {
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"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
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"options": [
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{
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{
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],
"role": "CISA Coordinator",
"timestamp": "2026-08-03T18:59:26.929115Z",
"version": "2.0.3"
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},
"published": "2026-08-03T03:16:43.997",
"references": [
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"tags": [
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"url": "https://www.mediatek.com/product-security-bulletin/August-2026"
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"sourceIdentifier": "security@mediatek.com",
"vulnStatus": "Analyzed",
"weaknesses": [
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"value": "CWE-125"
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"source": "security@mediatek.com",
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}
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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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