Vulnerability Details CVE-2026-20421
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: MOLY01738293; Issue ID: MSV-5922.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 43.6%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-20421
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cpe:2.3:h:mediatek:mt2735:-
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cpe:2.3:h:mediatek:mt6833:-
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cpe:2.3:h:mediatek:mt6853:-
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cpe:2.3:h:mediatek:mt6855:-
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cpe:2.3:h:mediatek:mt6873:-
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cpe:2.3:h:mediatek:mt6875:-
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cpe:2.3:h:mediatek:mt6877:-
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cpe:2.3:h:mediatek:mt6880:-
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cpe:2.3:h:mediatek:mt6883:-
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cpe:2.3:h:mediatek:mt6885:-
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cpe:2.3:h:mediatek:mt6889:-
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cpe:2.3:h:mediatek:mt6890:-
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cpe:2.3:h:mediatek:mt6891:-
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cpe:2.3:h:mediatek:mt6893:-
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cpe:2.3:h:mediatek:mt8791:-
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cpe:2.3:o:mediatek:nr15:-