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CVE-2026-20404 Details
Description
In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01689248; Issue ID: MSV-4837.
A denial-of-service vulnerability has been identified in the modem component of various MediaTek chipsets. This issue arises from improper input validation, which can lead to a system crash. The vulnerability can be exploited remotely if a user equipment (UE) device is connected to a rogue base station controlled by an attacker. Notably, no additional execution privileges are required for exploitation, and user interaction is not needed.
MediaTek has issued a patch for this vulnerability, which can be applied by device manufacturers. Instructions for applying the patch are available through MediaTek's official channels.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Feb 17, 2026Exploitation: NoneAutomatable: NoTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://corp.mediatek.com/product-security-bulletin/February-2026 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mediatek nr15 | All versions |
CPE
Remediation
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| mediatek nr16 | All versions |
CPE
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| mediatek nr17 | All versions |
CPE
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| mediatek nr17r | All versions |
CPE
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| mediatek mt2735 | All versions |
CPE
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| mediatek mt2737 | All versions |
CPE
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| mediatek mt6813 | All versions |
CPE
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| mediatek mt6815 | All versions |
CPE
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| mediatek mt6833 | All versions |
CPE
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| mediatek mt6835 | All versions |
CPE
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| mediatek mt6853 | All versions |
CPE
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| mediatek mt6855 | All versions |
CPE
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| mediatek mt6858 | All versions |
CPE
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| mediatek mt6873 | All versions |
CPE
Remediation
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| mediatek mt6875 | All versions |
CPE
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| mediatek mt6877 | All versions |
CPE
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| mediatek mt6878 | All versions |
CPE
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| mediatek mt6879 | All versions |
CPE
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| mediatek mt6880 | All versions |
CPE
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| mediatek mt6883 | All versions |
CPE
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| mediatek mt6885 | All versions |
CPE
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| mediatek mt6886 | All versions |
CPE
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| mediatek mt6889 | All versions |
CPE
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| mediatek mt6890 | All versions |
CPE
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| mediatek mt6891 | All versions |
CPE
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| mediatek mt6893 | All versions |
CPE
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| mediatek mt6895 | All versions |
CPE
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| mediatek mt6896 | All versions |
CPE
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| mediatek mt6897 | All versions |
CPE
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| mediatek mt6899 | All versions |
CPE
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| mediatek mt6980 | All versions |
CPE
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| mediatek mt6983 | All versions |
CPE
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| mediatek mt6985 | All versions |
CPE
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| mediatek mt6986 | All versions |
CPE
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| mediatek mt6989 | All versions |
CPE
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| mediatek mt6990 | All versions |
CPE
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| mediatek mt6991 | All versions |
CPE
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| mediatek mt6993 | All versions |
CPE
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| mediatek mt8668 | All versions |
CPE
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| mediatek mt8673 | All versions |
CPE
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| mediatek mt8675 | All versions |
CPE
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| mediatek mt8676 | All versions |
CPE
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| mediatek mt8678 | All versions |
CPE
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| mediatek mt8755 | All versions |
CPE
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| mediatek mt8771 | All versions |
CPE
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| mediatek mt8791 | All versions |
CPE
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| mediatek mt8791t | All versions |
CPE
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| mediatek mt8792 | All versions |
CPE
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| mediatek mt8793 | All versions |
CPE
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| mediatek mt8795t | All versions |
CPE
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| mediatek mt8797 | All versions |
CPE
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| mediatek mt8798 | All versions |
CPE
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| mediatek mt8863 | All versions |
CPE
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| mediatek mt8873 | All versions |
CPE
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| mediatek mt8883 | All versions |
CPE
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| mediatek mt8893 | All versions |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Feb 17, 2026 | CVE Modified | CISA-ADP |
| Feb 4, 2026 | Initial Analysis | [email protected] |
| Feb 2, 2026 | CVE Modified | CISA-ADP |
| Feb 2, 2026 | New CVE Received | [email protected] |