Vulnerability-Lookup

CVE-2026-20438 (GCVE-0-2026-20438)

Vulnerability from cvelistv5 – Published: 2026-03-02 08:39 – Updated: 2026-03-30 13:05

Summary

In MAE, there is a possible out of bounds write due to a race condition. 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: ALPS10431920; Issue ID: MSV-5835.

Severity

6.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-02 00:00 UTC

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

MediaTek mitre root

References

1 reference

URL	Tags
https://corp.mediatek.com/product-security-bullet…

Impacted products

1 product

Vendor	Product	Version	CPE status
MediaTek, Inc.	MediaTek chipset	Affected: MT2718 Affected: MT6899 Affected: MT6991 Affected: MT8168 Affected: MT8169 Affected: MT8186 Affected: MT8188 Affected: MT8678 Affected: MT8695 Affected: MT8696 Affected: MT8793	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-20438

Vulnerability from fkie_nvd - Published: 2026-03-02 09:16 - Updated: 2026-06-17 10:17

Severity

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

Summary

References

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

Impacted products

Vendor	Product	Version
google	android	15.0
mediatek	mt2718	-
mediatek	mt6899	-
mediatek	mt6991	-
mediatek	mt8168	-
mediatek	mt8169	-
mediatek	mt8186	-
mediatek	mt8188	-
mediatek	mt8678	-
mediatek	mt8695	-
mediatek	mt8696	-
mediatek	mt8793	-

JSON

To clipboard

{
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          "product": "MediaTek chipset",
          "vendor": "MediaTek, Inc.",
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      "lang": "es",
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GHSA-4C3G-MGJR-MCHG

Vulnerability from github – Published: 2026-03-02 09:30 – Updated: 2026-03-02 15:31

Details

Severity

6.4 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-20438"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-02T09:16:17Z",
    "severity": "MODERATE"
  },
  "details": "In MAE, there is a possible out of bounds write due to a race condition. 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: ALPS10431920; Issue ID: MSV-5835.",
  "id": "GHSA-4c3g-mgjr-mchg",
  "modified": "2026-03-02T15:31:23Z",
  "published": "2026-03-02T09:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20438"
    },
    {
      "type": "WEB",
      "url": "https://corp.mediatek.com/product-security-bulletin/March-2026"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "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-2026-20438 (GCVE-0-2026-20438)

FKIE_CVE-2026-20438

GHSA-4C3G-MGJR-MCHG

Tags

Sightings

Nomenclature

Related by attack behaviour