Is there a public exploit for CVE-2026-20553?

No public exploit for CVE-2026-20553 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-20553?

CVE-2026-20553 scores CVSS 6.8 (v3.1), rated medium.

What does CVE-2026-20553 affect?

CVE-2026-20553 affects MediaTek, Inc. MediaTek chipset.

6.8 Medium

In DA, there is a possible out of bounds write due to a missing bounds check.

CVE-2026-20553

In DA, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege, if an attacker has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11468968; Issue ID: MSV-10166.

Assessment

CVSS: 6.8 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 2 November 2026
Last updated: 2 November 2026
Affected: MediaTek, Inc. · MediaTek chipset
Assigner: MediaTek

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

At the source

EUVD (ENISA)

References

https://www.mediatek.com/product-security-bulletin/November-2026

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