0.0
NA
CVE-2026-20553
DA Out-of-Bounds Write Vulnerability
Description

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.

INFO

Published Date :

Nov. 2, 2026, 3:17 a.m.

Last Modified :

Nov. 2, 2026, 3:17 a.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2026-20553 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mediatek mt2737_firmware
2 Mediatek mt6781_firmware
3 Mediatek mt6789_firmware
4 Mediatek mt6813_firmware
5 Mediatek mt6835_firmware
6 Mediatek mt6855_firmware
7 Mediatek mt6878_firmware
8 Mediatek mt6879_firmware
9 Mediatek mt6880_firmware
10 Mediatek mt6886_firmware
11 Mediatek mt6890_firmware
12 Mediatek mt6895_firmware
13 Mediatek mt6897_firmware
14 Mediatek mt6899_firmware
15 Mediatek mt6983_firmware
16 Mediatek mt6985_firmware
17 Mediatek mt6989_firmware
18 Mediatek mt6990_firmware
19 Mediatek mt6991_firmware
20 Mediatek mt8676_firmware
21 Mediatek mt8678_firmware
22 Mediatek mt6986_firmware
23 Mediatek mt6858_firmware
24 Mediatek mt8188_firmware
25 Mediatek mt8370_firmware
26 Mediatek mt8390_firmware
27 Mediatek mt2718_firmware
28 Mediatek mt8189_firmware
29 Mediatek mt6982vb_firmware
30 Mediatek mt6881_firmware
Solution
Apply the vendor patch to fix the out-of-bounds write vulnerability.
  • Apply the vendor patch.
  • Ensure bounds checks are implemented.
  • Review code for similar issues.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-20553.

URL Resource
https://www.mediatek.com/product-security-bulletin/November-2026
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-20553 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-20553 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-20553 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-20553 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Nov. 02, 2026

    Action Type Old Value New Value
    Added Description 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.
    Added CWE CWE-787
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/20xxx/CVE-2026-20553.json">CVE-2026-20553</a>
    Added Reference https://www.mediatek.com/product-security-bulletin/November-2026
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.