Vulnerability-Lookup

CVE-2026-20484 (GCVE-0-2026-20484)

Vulnerability from cvelistv5 – Published: 2026-08-03 02:05 – Updated: 2026-08-03 19:45

Summary

In TFA, there is a possible information disclosure due to a missing permission check. 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: ALPS11053160; Issue ID: MSV-8004.

Severity

4.4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-03 19:44 UTC

CWE

CWE-201 - Insertion of Sensitive Information Into Sent Data

Assigner

MediaTek mitre root

References

1 reference

URL	Tags
https://www.mediatek.com/product-security-bulleti…

Impacted products

1 product

Vendor	Product	Version	CPE status
MediaTek, Inc.	MediaTek chipset	Affected: MT6739 Affected: MT6761 Affected: MT6765 Affected: MT6768 Affected: MT6781 Affected: MT6789 Affected: MT6833 Affected: MT6835 Affected: MT6853 Affected: MT6855 Affected: MT6877 Affected: MT6878 Affected: MT6879 Affected: MT6883 Affected: MT6885 Affected: MT6886 Affected: MT6889 Affected: MT6893 Affected: MT6895 Affected: MT6897 Affected: MT6899 Affected: MT6983 Affected: MT6985 Affected: MT6988 Affected: MT6989 Affected: MT6991 Affected: MT6993 Affected: MT8171 Affected: MT8188 Affected: MT8189 Affected: MT8390 Affected: MT8391 Affected: MT8668 Affected: MT8676 Affected: MT8678 Affected: MT8696 Affected: MT8792 Affected: MT8793 Affected: MT8799	guessed

Show details on NVD website

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Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-20484\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-03T19:44:46.089761Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-03T19:45:01.992Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"MediaTek, Inc.\", \"product\": \"MediaTek chipset\", \"versions\": [{\"status\": \"affected\", \"version\": \"MT6739\"}, {\"status\": \"affected\", \"version\": \"MT6761\"}, {\"status\": \"affected\", \"version\": \"MT6765\"}, {\"status\": \"affected\", \"version\": \"MT6768\"}, {\"status\": \"affected\", \"version\": \"MT6781\"}, {\"status\": \"affected\", \"version\": \"MT6789\"}, {\"status\": \"affected\", \"version\": \"MT6833\"}, {\"status\": \"affected\", \"version\": \"MT6835\"}, {\"status\": \"affected\", \"version\": \"MT6853\"}, {\"status\": \"affected\", \"version\": \"MT6855\"}, {\"status\": \"affected\", \"version\": \"MT6877\"}, {\"status\": \"affected\", \"version\": \"MT6878\"}, {\"status\": \"affected\", \"version\": \"MT6879\"}, {\"status\": \"affected\", \"version\": \"MT6883\"}, {\"status\": \"affected\", \"version\": \"MT6885\"}, {\"status\": \"affected\", \"version\": \"MT6886\"}, {\"status\": \"affected\", \"version\": \"MT6889\"}, {\"status\": \"affected\", \"version\": \"MT6893\"}, {\"status\": \"affected\", \"version\": \"MT6895\"}, {\"status\": \"affected\", \"version\": \"MT6897\"}, {\"status\": \"affected\", \"version\": \"MT6899\"}, {\"status\": \"affected\", \"version\": \"MT6983\"}, {\"status\": \"affected\", \"version\": \"MT6985\"}, {\"status\": \"affected\", \"version\": \"MT6988\"}, {\"status\": \"affected\", \"version\": \"MT6989\"}, {\"status\": \"affected\", \"version\": \"MT6991\"}, {\"status\": \"affected\", \"version\": \"MT6993\"}, {\"status\": \"affected\", \"version\": \"MT8171\"}, {\"status\": \"affected\", \"version\": \"MT8188\"}, {\"status\": \"affected\", \"version\": \"MT8189\"}, {\"status\": \"affected\", \"version\": \"MT8390\"}, {\"status\": \"affected\", \"version\": \"MT8391\"}, {\"status\": \"affected\", \"version\": \"MT8668\"}, {\"status\": \"affected\", \"version\": \"MT8676\"}, {\"status\": \"affected\", \"version\": \"MT8678\"}, {\"status\": \"affected\", \"version\": \"MT8696\"}, {\"status\": \"affected\", \"version\": \"MT8792\"}, {\"status\": \"affected\", \"version\": \"MT8793\"}, {\"status\": \"affected\", \"version\": \"MT8799\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://www.mediatek.com/product-security-bulletin/August-2026\"}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In TFA, there is a possible information disclosure due to a missing permission check. 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: ALPS11053160; Issue ID: MSV-8004.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-201\", \"description\": \"CWE-201 Insertion of Sensitive Information Into Sent Data\"}]}], \"providerMetadata\": {\"orgId\": \"ee979b05-11f8-4f25-a7e0-a1fa9c190374\", \"shortName\": \"MediaTek\", \"dateUpdated\": \"2026-08-03T02:05:48.650Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-20484\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-03T19:45:07.040Z\", \"dateReserved\": \"2025-11-03T01:30:59.022Z\", \"assignerOrgId\": \"ee979b05-11f8-4f25-a7e0-a1fa9c190374\", \"datePublished\": \"2026-08-03T02:05:48.650Z\", \"assignerShortName\": \"MediaTek\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-20484

Vulnerability from fkie_nvd - Published: 2026-08-03 03:16 - Updated: 2026-08-19 16:57

Severity

4.4 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	security@mediatek.com	https://www.mediatek.com/product-security-bulletin/August-2026	Vendor Advisory

Impacted products

Vendor	Product	Version
mediatek	mt8799_firmware	-
mediatek	mt8799	-
mediatek	mt6739_firmware	-
mediatek	mt6739	-
mediatek	mt6761_firmware	-
mediatek	mt6761	-
mediatek	mt6765_firmware	-
mediatek	mt6765	-
mediatek	mt6768_firmware	-
mediatek	mt6768	-
mediatek	mt6781_firmware	-
mediatek	mt6781	-
mediatek	mt6789_firmware	-
mediatek	mt6789	-
mediatek	mt6833_firmware	-
mediatek	mt6833	-
mediatek	mt6835_firmware	-
mediatek	mt6835	-
mediatek	mt6853_firmware	-
mediatek	mt6853	-
mediatek	mt6855_firmware	-
mediatek	mt6855	-
mediatek	mt6877_firmware	-
mediatek	mt6877	-
mediatek	mt6878_firmware	-
mediatek	mt6878	-
mediatek	mt6879_firmware	-
mediatek	mt6879	-
mediatek	mt6883_firmware	-
mediatek	mt6883	-
mediatek	mt6885_firmware	-
mediatek	mt6885	-
mediatek	mt6886_firmware	-
mediatek	mt6886	-
mediatek	mt6889_firmware	-
mediatek	mt6889	-
mediatek	mt6893_firmware	-
mediatek	mt6893	-
mediatek	mt6895_firmware	-
mediatek	mt6895	-
mediatek	mt6897_firmware	-
mediatek	mt6897	-
mediatek	mt6899_firmware	-
mediatek	mt6899	-
mediatek	mt6983_firmware	-
mediatek	mt6983	-
mediatek	mt6985_firmware	-
mediatek	mt6985	-
mediatek	mt6988_firmware	-
mediatek	mt6988	-
mediatek	mt6989_firmware	-
mediatek	mt6989	-
mediatek	mt6991_firmware	-
mediatek	mt6991	-
mediatek	mt6993_firmware	-
mediatek	mt6993	-
mediatek	mt8171_firmware	-
mediatek	mt8171	-
mediatek	mt8188_firmware	-
mediatek	mt8188	-
mediatek	mt8189_firmware	-
mediatek	mt8189	-
mediatek	mt8390_firmware	-
mediatek	mt8390	-
mediatek	mt8391_firmware	-
mediatek	mt8391	-
mediatek	mt8668_firmware	-
mediatek	mt8668	-
mediatek	mt8676_firmware	-
mediatek	mt8676	-
mediatek	mt8678_firmware	-
mediatek	mt8678	-
mediatek	mt8696_firmware	-
mediatek	mt8696	-
mediatek	mt8792_firmware	-
mediatek	mt8792	-
mediatek	mt8793_firmware	-
mediatek	mt8793	-

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "MediaTek chipset",
          "vendor": "MediaTek, Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "MT6739"
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GHSA-MHH4-4RGH-X32M

Vulnerability from github – Published: 2026-08-03 03:31 – Updated: 2026-08-03 21:31

Details

Severity

4.4 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Show details on source website

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To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-20484"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-03T03:16:43Z",
    "severity": "MODERATE"
  },
  "details": "In TFA, there is a possible information disclosure due to a missing permission check. 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: ALPS11053160; Issue ID: MSV-8004.",
  "id": "GHSA-mhh4-4rgh-x32m",
  "modified": "2026-08-03T21:31:33Z",
  "published": "2026-08-03T03:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20484"
    },
    {
      "type": "WEB",
      "url": "https://www.mediatek.com/product-security-bulletin/August-2026"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

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.

Action not permitted

CVE-2026-20484 (GCVE-0-2026-20484)

FKIE_CVE-2026-20484

GHSA-MHH4-4RGH-X32M

Tags

Sightings

Nomenclature

Related by attack behaviour