CVE-2026-20462

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Summary

CVECVE-2026-20462
StatePUBLISHED
AssignerMediaTek
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-01 04:17:15 UTC
Updated2026-07-02 05:16:40 UTC
DescriptionIn Telephony, there is a possible memory corruption due to a heap buffer overflow. 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: ALPS11006447; Issue ID: MSV-7871.

Risk And Classification

Primary CVSS: v3.1 6.7 MEDIUM from ADP

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

EPSS: 0.001110000 probability, percentile 0.015790000 (date 2026-07-03)

Problem Types: CWE-122 | CWE-122 CWE-122 Heap Overflow

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA MediaTek Inc. MediaTek Chipset affected MT6739 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6761 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6765 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6768 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6781 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6789 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6833 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6853 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6855 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6877 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6883 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6885 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6889 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT6893 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT8695 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT8696 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT8765 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT8766 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT8766R Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT8768 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT8781 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT8791 Not specified

References

ReferenceSourceLinkTags
corp.mediatek.com/product-security-bulletin/July-2026 [email protected] corp.mediatek.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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