Vulnerability Monitor

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CVE-2026-20483


In Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.7, requiring local system access to exploit with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), for affected systems. Impacting 70 products from mediatek, from mediatek, from mediatek and 67 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2026-08-03T03:16:43.430

Last Modified

2026-08-19T17:01:03.747

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.7 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-862

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System mediatek mt8893_firmware - Yes
Hardware mediatek mt8893 - No
Operating System mediatek mt6739_firmware - Yes
Hardware mediatek mt6739 - No
Operating System mediatek mt6761_firmware - Yes
Hardware mediatek mt6761 - No
Operating System mediatek mt6765_firmware - Yes
Hardware mediatek mt6765 - No
Operating System mediatek mt6768_firmware - Yes
Hardware mediatek mt6768 - No
Operating System mediatek mt6781_firmware - Yes
Hardware mediatek mt6781 - No
Operating System mediatek mt6789_firmware - Yes
Hardware mediatek mt6789 - No
Operating System mediatek mt6833_firmware - Yes
Hardware mediatek mt6833 - No
Operating System mediatek mt6835_firmware - Yes
Hardware mediatek mt6835 - No
Operating System mediatek mt6853_firmware - Yes
Hardware mediatek mt6853 - No
Operating System mediatek mt6855_firmware - Yes
Hardware mediatek mt6855 - No
Operating System mediatek mt6877_firmware - Yes
Hardware mediatek mt6877 - No
Operating System mediatek mt6878_firmware - Yes
Hardware mediatek mt6878 - No
Operating System mediatek mt6879_firmware - Yes
Hardware mediatek mt6879 - No
Operating System mediatek mt6883_firmware - Yes
Hardware mediatek mt6883 - No
Operating System mediatek mt6885_firmware - Yes
Hardware mediatek mt6885 - No
Operating System mediatek mt6886_firmware - Yes
Hardware mediatek mt6886 - No
Operating System mediatek mt6889_firmware - Yes
Hardware mediatek mt6889 - No
Operating System mediatek mt6893_firmware - Yes
Hardware mediatek mt6893 - No
Operating System mediatek mt6895_firmware - Yes
Hardware mediatek mt6895 - No
Operating System mediatek mt6897_firmware - Yes
Hardware mediatek mt6897 - No
Operating System mediatek mt6983_firmware - Yes
Hardware mediatek mt6983 - No
Operating System mediatek mt6985_firmware - Yes
Hardware mediatek mt6985 - No
Operating System mediatek mt6989_firmware - Yes
Hardware mediatek mt6989 - No
Operating System mediatek mt6991_firmware - Yes
Hardware mediatek mt6991 - No
Operating System mediatek mt6993_firmware - Yes
Hardware mediatek mt6993 - No
Operating System mediatek mt8766_firmware - Yes
Hardware mediatek mt8766 - No
Operating System mediatek mt8766r_firmware - Yes
Hardware mediatek mt8766r - No
Operating System mediatek mt8768_firmware - Yes
Hardware mediatek mt8768 - No
Operating System mediatek mt8775_firmware - Yes
Hardware mediatek mt8775 - No
Operating System mediatek mt8781_firmware - Yes
Hardware mediatek mt8781 - No
Operating System mediatek mt8792_firmware - Yes
Hardware mediatek mt8792 - No
Operating System mediatek mt8796_firmware - Yes
Hardware mediatek mt8796 - No
Operating System mediatek mt8873_firmware - Yes
Hardware mediatek mt8873 - No
Operating System mediatek mt8883_firmware - Yes
Hardware mediatek mt8883 - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mediatek's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.