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CVE-2026-20447

Out-of-bounds read in Mediatek Mt6768 Firmware

CVSS score

6.7

EPSS probability

%0.1

Risk score

0.0

Published

5 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

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-20447 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

In geniezone, there is a possible escalation of privilege 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: ALPS10724073; Issue ID: MSV-6296.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-20447 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1mediatekmt6768 firmware View
2mediatekmt6768 View
3mediatekmt6789 firmware View
4mediatekmt6789 View
5mediatekmt6877 firmware View
6mediatekmt6877 View
7mediatekmt6899 firmware View
8mediatekmt6899 View
9mediatekmt6989 firmware View
10mediatekmt6989 View
11mediatekmt6991 firmware View
12mediatekmt6991 View
13mediatekmt6993 firmware View
14mediatekmt6993 View
15mediatekmt8196 firmware View
16mediatekmt8196 View
17mediatekmt8367 firmware View
18mediatekmt8367 View
19mediatekmt8766 firmware View
20mediatekmt8766 View
21mediatekmt8768 firmware View
22mediatekmt8768 View
23mediatekmt8781 firmware View
24mediatekmt8781 View
25mediatekmt8786 firmware View
26mediatekmt8786 View
27mediatekmt8788e firmware View
28mediatekmt8788e View
29mediatekmt8791t firmware View
30mediatekmt8791t View
31mediatekmt8793 firmware View
32mediatekmt8793 View
33mediatekmt8910 firmware View
34mediatekmt8910 View
Total affected vendors: 1|Products: 34

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 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-2026-20447 is associated with the following CWEs:

CWE-125: Out-of-bounds Read

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-2026-20447 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://corp.mediatek.com/product-security-bulletin/May-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.

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Weakness Type (CWE & CAPEC)

CWE-125

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CVE-2026-20447 · Out-of-bounds read in Mediatek Mt6768…