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CVE-2026-20484

Information exposure in MediaTek, Inc. MediaTek Chipset

CVSS score

4.4

EPSS probability

%0.2

Risk score

0.0

Published

2 mo 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.

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-20484 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

In TFA, there is a possible information disclosure due to a missing permission check. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11053160; Issue ID: MSV-8004.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-20484 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1MediaTek, Inc.MediaTek chipset View
2mediatekmt8799 firmware View
3mediatekmt8799 View
4mediatekmt6739 firmware View
5mediatekmt6739 View
6mediatekmt6761 firmware View
7mediatekmt6761 View
8mediatekmt6765 firmware View
9mediatekmt6765 View
10mediatekmt6768 firmware View
11mediatekmt6768 View
12mediatekmt6781 firmware View
13mediatekmt6781 View
14mediatekmt6789 firmware View
15mediatekmt6789 View
16mediatekmt6833 firmware View
17mediatekmt6833 View
18mediatekmt6835 firmware View
19mediatekmt6835 View
20mediatekmt6853 firmware View
21mediatekmt6853 View
22mediatekmt6855 firmware View
23mediatekmt6855 View
24mediatekmt6877 firmware View
25mediatekmt6877 View
26mediatekmt6878 firmware View
27mediatekmt6878 View
28mediatekmt6879 firmware View
29mediatekmt6879 View
30mediatekmt6883 firmware View
31mediatekmt6883 View
32mediatekmt6885 firmware View
33mediatekmt6885 View
34mediatekmt6886 firmware View
35mediatekmt6886 View
36mediatekmt6889 firmware View
37mediatekmt6889 View
38mediatekmt6893 firmware View
39mediatekmt6893 View
40mediatekmt6895 firmware View
41mediatekmt6895 View
42mediatekmt6897 firmware View
43mediatekmt6897 View
44mediatekmt6899 firmware View
45mediatekmt6899 View
46mediatekmt6983 firmware View
47mediatekmt6983 View
48mediatekmt6985 firmware View
49mediatekmt6985 View
50mediatekmt6988 firmware View
51mediatekmt6988 View
52mediatekmt6989 firmware View
53mediatekmt6989 View
54mediatekmt6991 firmware View
55mediatekmt6991 View
56mediatekmt6993 firmware View
57mediatekmt6993 View
58mediatekmt8171 firmware View
59mediatekmt8171 View
60mediatekmt8188 firmware View
61mediatekmt8188 View
62mediatekmt8189 firmware View
63mediatekmt8189 View
64mediatekmt8390 firmware View
65mediatekmt8390 View
66mediatekmt8391 firmware View
67mediatekmt8391 View
68mediatekmt8668 firmware View
69mediatekmt8668 View
70mediatekmt8676 firmware View
71mediatekmt8676 View
72mediatekmt8678 firmware View
73mediatekmt8678 View
74mediatekmt8696 firmware View
75mediatekmt8696 View
76mediatekmt8792 firmware View
77mediatekmt8792 View
78mediatekmt8793 firmware View
79mediatekmt8793 View
Total affected vendors: 2|Products: 79

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
4.4CVSS V31MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NNVD
4.4CVSS V3_1MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NCVE 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-2026-20484 is associated with the following CWEs:

CWE-201: Common Weakness Enumeration Entry CWE-201

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-2026-20484 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/August-2026vendor-advisory

CVSS Vector Radar Chart

4.4 / 10
Attack VectorLocalComplexityLowPrivilegesHighUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

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

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-201

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