Answer in brief
CVE-2026-20459 records a Medium severity (CVSS 5.9) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps MediaTek, Inc./MediaTek chipset (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps MediaTek, Inc./MediaTek chipset (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| MediaTek, Inc./MediaTek chipsetgeneric | MT2716 || MT2735 || MT2737 || MT6739 || MT6761 || MT6762 || MT6763 || MT6765 || MT6767 || MT6768 || MT6769 || MT6771 || MT6779 || MT6781 || MT6783 || MT6785 || MT6789 || MT6813 || MT6833 || MT6835 || MT6853 || MT6855 || MT6858 || MT6873 || MT6875 || MT6877 || MT6878 || MT6879 || MT6880 || MT6881 || MT6883 || MT6885 || MT6886 || MT6889 || MT6890 || MT6891 || MT6893 || MT6895 || MT6896 || MT6897 || MT6899 || MT6980 || MT6982 || MT6983 || MT6985 || MT6986 || MT6986D || MT6988 || MT6989 || MT6990 || MT6991 || MT6993 || MT8666 || MT8667 || MT8668 || MT8673 || MT8675 || MT8676 || MT8678 || MT8755 || MT8765 || MT8766 || MT8766R || MT8768 || MT8771 || MT8775 || MT8781 || MT8786 || MT8788 || MT8788E || MT8789 || MT8791 || MT8791T || MT8792 || MT8793 || MT8795T || MT8796 || MT8797 || MT8798 || MT8863 || MT8873 || MT8883 || MT8893 | Not reported |
Published upstream
Jul 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 1, 2026
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: MOLY01816800; Issue ID: MSV-6842.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-20459 records a Medium severity (CVSS 5.9) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps MediaTek, Inc./MediaTek chipset (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps MediaTek, Inc./MediaTek chipset (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| MediaTek, Inc./MediaTek chipsetgeneric | MT2716 || MT2735 || MT2737 || MT6739 || MT6761 || MT6762 || MT6763 || MT6765 || MT6767 || MT6768 || MT6769 || MT6771 || MT6779 || MT6781 || MT6783 || MT6785 || MT6789 || MT6813 || MT6833 || MT6835 || MT6853 || MT6855 || MT6858 || MT6873 || MT6875 || MT6877 || MT6878 || MT6879 || MT6880 || MT6881 || MT6883 || MT6885 || MT6886 || MT6889 || MT6890 || MT6891 || MT6893 || MT6895 || MT6896 || MT6897 || MT6899 || MT6980 || MT6982 || MT6983 || MT6985 || MT6986 || MT6986D || MT6988 || MT6989 || MT6990 || MT6991 || MT6993 || MT8666 || MT8667 || MT8668 || MT8673 || MT8675 || MT8676 || MT8678 || MT8755 || MT8765 || MT8766 || MT8766R || MT8768 || MT8771 || MT8775 || MT8781 || MT8786 || MT8788 || MT8788E || MT8789 || MT8791 || MT8791T || MT8792 || MT8793 || MT8795T || MT8796 || MT8797 || MT8798 || MT8863 || MT8873 || MT8883 || MT8893 | Not reported |
Published upstream
Jul 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 1, 2026
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: MOLY01816800; Issue ID: MSV-6842.
Quoted source text, attributed separately from HOL analysis.