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High severity7.7NVD Advisory· Published Aug 3, 2026· Updated Aug 19, 2026

CVE-2026-20483

CVE-2026-20483

Description

In Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

36
  • Mediatek/telephonyllm-fuzzy
  • Mediatek/Mt8893 Firmware3 versions
    cpe:2.3:o:mediatek:mt8893_firmware:-:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:mediatek:mt8893_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt6897_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt8766_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8793 Firmware2 versions
    cpe:2.3:o:mediatek:mt6739_firmware:-:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:mediatek:mt6739_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt6877_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8791t Firmware3 versions
    cpe:2.3:o:mediatek:mt6761_firmware:-:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:mediatek:mt6761_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt6835_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt6855_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt6985 Firmware2 versions
    cpe:2.3:o:mediatek:mt6765_firmware:-:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:mediatek:mt6765_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt6985_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8775 Firmware2 versions
    cpe:2.3:o:mediatek:mt6768_firmware:-:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:mediatek:mt6768_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt8775_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt6899 Firmware
    cpe:2.3:o:mediatek:mt6781_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8675 Firmware5 versions
    cpe:2.3:o:mediatek:mt6789_firmware:-:*:*:*:*:*:*:*+ 4 more
    • cpe:2.3:o:mediatek:mt6789_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt6853_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt6879_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt6885_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt6893_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt6833 Firmware
    cpe:2.3:o:mediatek:mt6833_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt6989 Firmware2 versions
    cpe:2.3:o:mediatek:mt6878_firmware:-:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:mediatek:mt6878_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt6989_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt6883 Firmware
    cpe:2.3:o:mediatek:mt6883_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt6886 Firmware
    cpe:2.3:o:mediatek:mt6886_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8668 Firmware
    cpe:2.3:o:mediatek:mt6889_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt6895 Firmware
    cpe:2.3:o:mediatek:mt6895_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt6983 Firmware
    cpe:2.3:o:mediatek:mt6983_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt6991 Firmware
    cpe:2.3:o:mediatek:mt6991_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt6993 Firmware
    cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8766r Firmware
    cpe:2.3:o:mediatek:mt8766r_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8786 Firmware
    cpe:2.3:o:mediatek:mt8768_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8873 Firmware2 versions
    cpe:2.3:o:mediatek:mt8781_firmware:-:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:mediatek:mt8781_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:mediatek:mt8873_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8792 Firmware
    cpe:2.3:o:mediatek:mt8792_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8796 Firmware
    cpe:2.3:o:mediatek:mt8796_firmware:-:*:*:*:*:*:*:*
  • Mediatek/Mt8883 Firmware
    cpe:2.3:o:mediatek:mt8883_firmware:-:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

1

News mentions

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