SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-20455

In geniezone, there is a possible out of bounds write due to a missing bounds check.

HIGH 7.8EPSS 0.11%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

In geniezone, there is a possible out of bounds write 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: ALPS10873936; Issue ID: MSV-6784.

CVSS 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.11% probability · 1th percentile
CISA KEV
Not listed
Weakness
CWE-787
Affected
mediatek/mt6739 firmware · mediatek/mt6761 firmware · mediatek/mt6765 firmware · mediatek/mt6768 firmware · mediatek/mt6781 firmware · mediatek/mt6789 firmware · mediatek/mt6835 firmware · mediatek/mt6853 firmware · mediatek/mt6855 firmware · mediatek/mt6877 firmware · mediatek/mt6878 firmware · mediatek/mt6879 firmware · mediatek/mt6883 firmware · mediatek/mt6885 firmware · mediatek/mt6886 firmware · mediatek/mt6889 firmware · mediatek/mt6893 firmware · mediatek/mt6895 firmware · mediatek/mt6897 firmware · mediatek/mt6899 firmware · +16 more
Source
security@mediatek.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.