What is CVE-2026-20451?

CVE-2026-20451 is a medium-severity vulnerability in Mediatek Mt2718, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 6.7/10. Published 2026-05-04.

How severe is CVE-2026-20451?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Mediatek Mt2718

CVE-2026-20451

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…

EPSS: 0.000 (0.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mediatek Mt2718
Mediatek Mt2718_firmware
Mediatek Mt6899
Mediatek Mt6899_firmware
Mediatek Mt6985
Mediatek Mt6985_firmware
Mediatek Mt6989
Mediatek Mt6989_firmware
Mediatek Mt6991
Mediatek Mt6991_firmware

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

References

security@mediatek.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-20451?: CVE-2026-20451 is a medium-severity vulnerability in Mediatek Mt2718, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 6.7/10. Published 2026-05-04.
How severe is CVE-2026-20451?: Medium severity. CVSS v3 base score is 6.7 out of 10.