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CVE-2026-20529

Out-of-bounds write in MediaTek, Inc. MediaTek Chipset

CVSS score

6.7

EPSS probability

%0.1

Risk score

0.0

Published

13 d ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-20529 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

In battery, there is a possible out of bounds write due to a missing bounds check. 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: ALPS11276677; Issue ID: MSV-9217.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-20529 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1MediaTek, Inc.MediaTek chipset View
2mediatekmt6761 firmware View
3mediatekmt6761 View
4mediatekmt6765 firmware View
5mediatekmt6765 View
6mediatekmt6768 firmware View
7mediatekmt6768 View
8mediatekmt6781 firmware View
9mediatekmt6781 View
10mediatekmt6853 firmware View
11mediatekmt6853 View
12mediatekmt6858 firmware View
13mediatekmt6858 View
14mediatekmt6881 firmware View
15mediatekmt6881 View
16mediatekmt6893 firmware View
17mediatekmt6893 View
18mediatekmt6989 firmware View
19mediatekmt6989 View
20mediatekmt6991 firmware View
21mediatekmt6991 View
22mediatekmt6993 firmware View
23mediatekmt6993 View
24mediatekmt8171 firmware View
25mediatekmt8171 View
26mediatekmt8186 firmware View
27mediatekmt8186 View
28mediatekmt8188 firmware View
29mediatekmt8188 View
30mediatekmt8189 firmware View
31mediatekmt8189 View
32mediatekmt8196 firmware View
33mediatekmt8196 View
34mediatekmt8766 firmware View
35mediatekmt8766 View
36mediatekmt8768 firmware View
37mediatekmt8768 View
38mediatekmt8775 firmware View
39mediatekmt8775 View
40mediatekmt8781 firmware View
41mediatekmt8781 View
42mediatekmt8788e firmware View
43mediatekmt8788e View
44mediatekmt8791t firmware View
45mediatekmt8791t View
46mediatekmt8792 firmware View
47mediatekmt8792 View
48mediatekmt8796 firmware View
49mediatekmt8796 View
50mediatekmt8799 firmware View
51mediatekmt8799 View
52mediatekmt8883 firmware View
53mediatekmt8883 View
54mediatekmt8893 firmware View
55mediatekmt8893 View
56mediatekmt8910 firmware View
57mediatekmt8910 View
Total affected vendors: 2|Products: 57

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
6.7CVSS V3_1MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HCVE ADP
6.7CVSS V31MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-20529 is associated with the following CWEs:

CWE-787: Out-of-bounds Write

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-2026-20529 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim
PermissionsHigh
UserGerekmiyor

Official Sources and Advisories

https://www.mediatek.com/product-security-bulletin/October-2026vendor-advisory

CVSS Vector Radar Chart

6.7 / 10
Attack VectorLocalComplexityLowPrivilegesHighUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredHigh privileges
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

MI
MediaTek, Inc. logo
MediaTek, Inc.
M
mediatek logo
mediatek

Weakness Type (CWE & CAPEC)

CWE-787

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