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CVE-2026-20473 (GCVE-0-2026-20473)

Vulnerability from cvelistv5 – Published: 2026-08-03 02:05 – Updated: 2026-08-05 03:56
VLAI
Summary
In display, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11019722; Issue ID: MSV-7759.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 00:00 UTC
CWE
Impacted products
Vendor Product Version CPE status
MediaTek, Inc. MediaTek chipset Affected: MT6991
Affected: MT6993
Affected: MT8126
Affected: MT8171
Affected: MT8188
Affected: MT8189
Affected: MT8367
Affected: MT8668
Affected: MT8676
Affected: MT8678
Affected: MT8766
Affected: MT8768
Affected: MT8781
Affected: MT8786
Affected: MT8791T
Affected: MT8799
Affected: MT8910
guessed Create a notification for this product.
Show details on NVD website

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          }
        ],
        "sourceIdentifier": "security@mediatek.com",
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            "type": "Secondary"
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        ]
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    },
    "vulnrichment": {
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              {
                "cvssV3_1": {
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                  "baseScore": 6,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "HIGH",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
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                "other": {
                  "content": {
                    "id": "CVE-2026-20473",
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            {
              "lang": "en",
              "value": "In display, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11019722; Issue ID: MSV-7759."
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            "orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
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        "datePublished": "2026-08-03T02:05:26.998Z",
        "dateReserved": "2025-11-03T01:30:59.016Z",
        "dateUpdated": "2026-08-05T03:56:45.233Z",
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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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Detection rules are retrieved from Rulezet.

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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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