Medium severity · published Oct 5, 2026
CVE-2026-20544
In meta, there is a possible out of bounds write due to a missing bounds check
6.8
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
MediaTek chipset · MediaTek, Inc.
MT6739; MT6761; MT6765; MT6768; MT6769; MT6781; +34 more · source: vendor
MF
Mt6739 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6761 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6765 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6768 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6769 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6781 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6789 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6835 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6853 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6855 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6858 Firmware · Mediatek
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20544
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20544
www.mediatek.com
https://www.mediatek.com/product-security-bulletin/October-2026
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