Back to the CVE list
CVE-2026-20544

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

CVSS score

6.8

EPSS probability

%0.2

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

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

Checking session…

Vulnerability description

DayBreach CVE AI Research

CVE-2026-20544 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

In meta, 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: ALPS11049530 / ALPS11480843; Issue ID: MSV-7935.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-20544 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1MediaTek, Inc.MediaTek chipset View
2mediatekmt8910 firmware View
3mediatekmt8910 View
4mediatekmt6739 firmware View
5mediatekmt6739 View
6mediatekmt6761 firmware View
7mediatekmt6761 View
8mediatekmt6765 firmware View
9mediatekmt6765 View
10mediatekmt6768 firmware View
11mediatekmt6768 View
12mediatekmt6769 firmware View
13mediatekmt6769 View
14mediatekmt6781 firmware View
15mediatekmt6781 View
16mediatekmt6789 firmware View
17mediatekmt6789 View
18mediatekmt6835 firmware View
19mediatekmt6835 View
20mediatekmt6853 firmware View
21mediatekmt6853 View
22mediatekmt6855 firmware View
23mediatekmt6855 View
24mediatekmt6858 firmware View
25mediatekmt6858 View
26mediatekmt6877 firmware View
27mediatekmt6877 View
28mediatekmt6878 firmware View
29mediatekmt6878 View
30mediatekmt6879 firmware View
31mediatekmt6879 View
32mediatekmt6881 firmware View
33mediatekmt6881 View
34mediatekmt6883 firmware View
35mediatekmt6883 View
36mediatekmt6885 firmware View
37mediatekmt6885 View
38mediatekmt6886 firmware View
39mediatekmt6886 View
40mediatekmt6889 firmware View
41mediatekmt6889 View
42mediatekmt6893 firmware View
43mediatekmt6893 View
44mediatekmt6895 firmware View
45mediatekmt6895 View
46mediatekmt6897 firmware View
47mediatekmt6897 View
48mediatekmt6899 firmware View
49mediatekmt6899 View
50mediatekmt6983 firmware View
51mediatekmt6983 View
52mediatekmt6985 firmware View
53mediatekmt6985 View
54mediatekmt6989 firmware View
55mediatekmt6989 View
56mediatekmt6991 firmware View
57mediatekmt6991 View
58mediatekmt6993 firmware View
59mediatekmt6993 View
60mediatekmt8126 firmware View
61mediatekmt8126 View
62mediatekmt8171 firmware View
63mediatekmt8171 View
64mediatekmt8188 firmware View
65mediatekmt8188 View
66mediatekmt8189 firmware View
67mediatekmt8189 View
68mediatekmt8195 firmware View
69mediatekmt8195 View
70mediatekmt8196 firmware View
71mediatekmt8196 View
72mediatekmt8367 firmware View
73mediatekmt8367 View
74mediatekmt8370 firmware View
75mediatekmt8370 View
76mediatekmt8390 firmware View
77mediatekmt8390 View
78mediatekmt8391 firmware View
79mediatekmt8391 View
80mediatekmt8668 firmware View
81mediatekmt8668 View
82mediatekmt8676 firmware View
83mediatekmt8676 View
84mediatekmt8678 firmware View
85mediatekmt8678 View
86mediatekmt8755 firmware View
87mediatekmt8755 View
88mediatekmt8766 firmware View
89mediatekmt8766 View
90mediatekmt8768 firmware View
91mediatekmt8768 View
92mediatekmt8775 firmware View
93mediatekmt8775 View
94mediatekmt8781 firmware View
95mediatekmt8781 View
96mediatekmt8786 firmware View
97mediatekmt8786 View
98mediatekmt8788 firmware View
99mediatekmt8788 View
100mediatekmt8791 firmware View
101mediatekmt8791 View
102mediatekmt8792 firmware View
103mediatekmt8792 View
104mediatekmt8793 firmware View
105mediatekmt8793 View
106mediatekmt8798 firmware View
107mediatekmt8798 View
108mediatekmt8799 firmware View
109mediatekmt8799 View
110mediatekmt8863 firmware View
111mediatekmt8863 View
112mediatekmt8873 firmware View
113mediatekmt8873 View
114mediatekmt8875 firmware View
115mediatekmt8875 View
116mediatekmt8883 firmware View
117mediatekmt8883 View
118mediatekmt8893 firmware View
119mediatekmt8893 View
Total affected vendors: 2|Products: 119

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
6.8CVSS V31MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD
6.8CVSS V3_1MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE ADP

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-2026-20544 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-2026-20544 weaknesses.

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

Attack Vector and Accessibility

ExposureFiziksel
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

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

CVSS Vector Radar Chart

6.8 / 10
Attack VectorLocalComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack VectorPhysical
Attack ComplexityLow
Privileges RequiredNone required
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

Similar Vulnerabilities

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

Get a free keyDocumentation
curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-20544"