CVE-2026-20455

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.

Published: 2026-06-01 Last update: 2026-06-01 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-20455 is rated Low Risk (33/100): CVSS High severity, with low exploitation likelihood (EPSS 0.02%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-20455

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-01 — 0.02% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-20455

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-20455

GitHub Security Advisory for CVE-2026-20455

GHSA-jf3x-c8h2-5gjj · Severity: high — In geniezone, there is a possible out of bounds write due to a missing bounds check. This could...

Affected software / configurations for CVE-2026-20455

Vendor Product Version Raw CPE
mediatek mt6739_firmware — cpe:2.3:o:mediatek:mt6739_firmware:-:*:*:*:*:*:*:*
mediatek mt6761_firmware — cpe:2.3:o:mediatek:mt6761_firmware:-:*:*:*:*:*:*:*
mediatek mt6765_firmware — cpe:2.3:o:mediatek:mt6765_firmware:-:*:*:*:*:*:*:*
mediatek mt6768_firmware — cpe:2.3:o:mediatek:mt6768_firmware:-:*:*:*:*:*:*:*
mediatek mt6781_firmware — cpe:2.3:o:mediatek:mt6781_firmware:-:*:*:*:*:*:*:*
mediatek mt6789_firmware — cpe:2.3:o:mediatek:mt6789_firmware:-:*:*:*:*:*:*:*
mediatek mt6835_firmware — cpe:2.3:o:mediatek:mt6835_firmware:-:*:*:*:*:*:*:*
mediatek mt6853_firmware — cpe:2.3:o:mediatek:mt6853_firmware:-:*:*:*:*:*:*:*
mediatek mt6855_firmware — cpe:2.3:o:mediatek:mt6855_firmware:-:*:*:*:*:*:*:*
mediatek mt6877_firmware — cpe:2.3:o:mediatek:mt6877_firmware:-:*:*:*:*:*:*:*
mediatek mt6878_firmware — cpe:2.3:o:mediatek:mt6878_firmware:-:*:*:*:*:*:*:*
mediatek mt6879_firmware — cpe:2.3:o:mediatek:mt6879_firmware:-:*:*:*:*:*:*:*
mediatek mt6883_firmware — cpe:2.3:o:mediatek:mt6883_firmware:-:*:*:*:*:*:*:*
mediatek mt6885_firmware — cpe:2.3:o:mediatek:mt6885_firmware:-:*:*:*:*:*:*:*
mediatek mt6886_firmware — cpe:2.3:o:mediatek:mt6886_firmware:-:*:*:*:*:*:*:*
mediatek mt6889_firmware — cpe:2.3:o:mediatek:mt6889_firmware:-:*:*:*:*:*:*:*
mediatek mt6893_firmware — cpe:2.3:o:mediatek:mt6893_firmware:-:*:*:*:*:*:*:*
mediatek mt6895_firmware — cpe:2.3:o:mediatek:mt6895_firmware:-:*:*:*:*:*:*:*
mediatek mt6897_firmware — cpe:2.3:o:mediatek:mt6897_firmware:-:*:*:*:*:*:*:*
mediatek mt6899_firmware — cpe:2.3:o:mediatek:mt6899_firmware:-:*:*:*:*:*:*:*
mediatek mt6983_firmware — cpe:2.3:o:mediatek:mt6983_firmware:-:*:*:*:*:*:*:*
mediatek mt6985_firmware — cpe:2.3:o:mediatek:mt6985_firmware:-:*:*:*:*:*:*:*
mediatek mt6989_firmware — cpe:2.3:o:mediatek:mt6989_firmware:-:*:*:*:*:*:*:*
mediatek mt6991_firmware — cpe:2.3:o:mediatek:mt6991_firmware:-:*:*:*:*:*:*:*
mediatek mt8673_firmware — cpe:2.3:o:mediatek:mt8673_firmware:-:*:*:*:*:*:*:*
mediatek mt8765_firmware — cpe:2.3:o:mediatek:mt8765_firmware:-:*:*:*:*:*:*:*
mediatek mt8766_firmware — cpe:2.3:o:mediatek:mt8766_firmware:-:*:*:*:*:*:*:*
mediatek mt8768_firmware — cpe:2.3:o:mediatek:mt8768_firmware:-:*:*:*:*:*:*:*
mediatek mt8781_firmware — cpe:2.3:o:mediatek:mt8781_firmware:-:*:*:*:*:*:*:*
mediatek mt8786_firmware — cpe:2.3:o:mediatek:mt8786_firmware:-:*:*:*:*:*:*:*
mediatek mt8788_firmware — cpe:2.3:o:mediatek:mt8788_firmware:-:*:*:*:*:*:*:*
mediatek mt8791t_firmware — cpe:2.3:o:mediatek:mt8791t_firmware:-:*:*:*:*:*:*:*
mediatek mt8793_firmware — cpe:2.3:o:mediatek:mt8793_firmware:-:*:*:*:*:*:*:*
mediatek mt8797_firmware — cpe:2.3:o:mediatek:mt8797_firmware:-:*:*:*:*:*:*:*
mediatek mt8798_firmware — cpe:2.3:o:mediatek:mt8798_firmware:-:*:*:*:*:*:*:*
mediatek mt8910_firmware — cpe:2.3:o:mediatek:mt8910_firmware:-:*:*:*:*:*:*:*

References for CVE-2026-20455

cvelogic Threat Intelligence