Out of Bounds Write Vulnerability in imgsys by MediaTek
CVE-2026-20409

7.8HIGH

Key Information:

Vendor

MediaTek
Status
Mt6897, Mt6989
Vendor
CVE Published:
2 February 2026

What is CVE-2026-20409?

In imgsys, a potential out of bounds write issue arises from a missing bounds check, which may allow a malicious user with existing System privileges to escalate their privileges on the device. Exploitation of this vulnerability does not require user interaction, making it a significant security concern. Affected users are advised to apply the provided patch (Patch ID: ALPS10363246) promptly to mitigate risks.

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Affected Version(s)

MT6897, MT6989 Android 15.0

References

https://corp.mediatek.com/product-security-bulletin/Febru...

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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