CVE-2026-20451

Severity: medium (CVSS 6.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-04 · updated 2026-10-26
Weakness: CWE-843

Description

In slbc, there is a possible out of bounds write due to type confusion. 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: ALPS10828685; Issue ID: MSV-6504.

Affected products

Mediatek Mt2718 Firmware: all versions
Mediatek Mt6899 Firmware: all versions
Mediatek Mt6985 Firmware: all versions
Mediatek Mt6989 Firmware: all versions
Mediatek Mt6991 Firmware: all versions
Mediatek Mt8115 Firmware: all versions
Mediatek Mt8186 Firmware: all versions
Mediatek Mt8188 Firmware: all versions
Mediatek Mt8196 Firmware: all versions
Mediatek Mt8365 Firmware: all versions
Mediatek Mt8367 Firmware: all versions
Mediatek Mt8370 Firmware: all versions
Mediatek Mt8371 Firmware: all versions
Mediatek Mt8390 Firmware: all versions
Mediatek Mt8391 Firmware: all versions
Mediatek Mt8395 Firmware: all versions
Mediatek Mt8676 Firmware: all versions
Mediatek Mt8678 Firmware: all versions
Mediatek Mt8766 Firmware: all versions
Mediatek Mt8768 Firmware: all versions
Mediatek Mt8775 Firmware: all versions
Mediatek Mt8781 Firmware: all versions
Mediatek Mt8786 Firmware: all versions
Mediatek Mt8788E Firmware: all versions
Mediatek Mt8791T Firmware: all versions
Mediatek Mt8792 Firmware: all versions
Mediatek Mt8793 Firmware: all versions
Mediatek Mt8796 Firmware: all versions
Mediatek Mt8873 Firmware: all versions
Mediatek Mt8883 Firmware: all versions

References

https://corp.mediatek.com/product-security-bulletin/May-2026

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