Medium severity · published May 4, 2026
CVE-2026-20451
In slbc, there is a possible out of bounds write due to type confusion
6.7
CVSS
0.2%
EPSS
No
On KEV
Description
In slbc, there is a possible out of bounds write due to type confusion. 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: ALPS10828685; Issue ID: MSV-6504.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
MediaTek chipset · MediaTek, Inc.
MT2718; MT6899; MT6985; MT6989; MT6991; MT8115; +26 more · source: vendor
MF
Mt2718 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6899 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6985 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6989 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt6991 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt8115 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt8186 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt8188 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt8196 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt8365 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt8367 Firmware · Mediatek
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20451
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20451
Vendor Advisory
https://corp.mediatek.com/product-security-bulletin/May-2026
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