CVE-2026-20501

In vdec, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11262030; Issue ID: MSV-9197.
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:mediatek:mt2718_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt2718:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:mediatek:mt6580_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6580:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:mediatek:mt6739_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6739:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:mediatek:mt6761_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6761:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:mediatek:mt6765_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6765:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:mediatek:mt6768_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6768:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:mediatek:mt6769_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6769:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:mediatek:mt6779_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6779:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:mediatek:mt6781_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6781:-:*:*:*:*:*:*:*

Configuration 10 (hide)

AND
cpe:2.3:o:mediatek:mt6785_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6785:-:*:*:*:*:*:*:*

Configuration 11 (hide)

AND
cpe:2.3:o:mediatek:mt6789_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6789:-:*:*:*:*:*:*:*

Configuration 12 (hide)

AND
cpe:2.3:o:mediatek:mt6833_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*

Configuration 13 (hide)

AND
cpe:2.3:o:mediatek:mt6835_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:*

Configuration 14 (hide)

AND
cpe:2.3:o:mediatek:mt6853_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:*

Configuration 15 (hide)

AND
cpe:2.3:o:mediatek:mt6855_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:*

Configuration 16 (hide)

AND
cpe:2.3:o:mediatek:mt6858_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6858:-:*:*:*:*:*:*:*

Configuration 17 (hide)

AND
cpe:2.3:o:mediatek:mt6873_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6873:-:*:*:*:*:*:*:*

Configuration 18 (hide)

AND
cpe:2.3:o:mediatek:mt6877_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*

Configuration 19 (hide)

AND
cpe:2.3:o:mediatek:mt6878_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6878:-:*:*:*:*:*:*:*

Configuration 20 (hide)

AND
cpe:2.3:o:mediatek:mt6879_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6879:-:*:*:*:*:*:*:*

Configuration 21 (hide)

AND
cpe:2.3:o:mediatek:mt6881_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6881:-:*:*:*:*:*:*:*

Configuration 22 (hide)

AND
cpe:2.3:o:mediatek:mt6883_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6883:-:*:*:*:*:*:*:*

Configuration 23 (hide)

AND
cpe:2.3:o:mediatek:mt6885_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*

Configuration 24 (hide)

AND
cpe:2.3:o:mediatek:mt6886_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6886:-:*:*:*:*:*:*:*

Configuration 25 (hide)

AND
cpe:2.3:o:mediatek:mt6889_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:*

Configuration 26 (hide)

AND
cpe:2.3:o:mediatek:mt6893_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6893:-:*:*:*:*:*:*:*

Configuration 27 (hide)

AND
cpe:2.3:o:mediatek:mt6895_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6895:-:*:*:*:*:*:*:*

Configuration 28 (hide)

AND
cpe:2.3:o:mediatek:mt6897_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6897:-:*:*:*:*:*:*:*

Configuration 29 (hide)

AND
cpe:2.3:o:mediatek:mt6899_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6899:-:*:*:*:*:*:*:*

Configuration 30 (hide)

AND
cpe:2.3:o:mediatek:mt6983_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6983:-:*:*:*:*:*:*:*

Configuration 31 (hide)

AND
cpe:2.3:o:mediatek:mt6985_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6985:-:*:*:*:*:*:*:*

Configuration 32 (hide)

AND
cpe:2.3:o:mediatek:mt6989_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6989:-:*:*:*:*:*:*:*

Configuration 33 (hide)

AND
cpe:2.3:o:mediatek:mt6991_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:*

Configuration 34 (hide)

AND
cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:*

Configuration 35 (hide)

AND
cpe:2.3:o:mediatek:mt8126_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8126:-:*:*:*:*:*:*:*

Configuration 36 (hide)

AND
cpe:2.3:o:mediatek:mt8171_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8171:-:*:*:*:*:*:*:*

Configuration 37 (hide)

AND
cpe:2.3:o:mediatek:mt8186_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8186:-:*:*:*:*:*:*:*

Configuration 38 (hide)

AND
cpe:2.3:o:mediatek:mt8188_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8188:-:*:*:*:*:*:*:*

Configuration 39 (hide)

AND
cpe:2.3:o:mediatek:mt8189_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8189:-:*:*:*:*:*:*:*

Configuration 40 (hide)

AND
cpe:2.3:o:mediatek:mt8195_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8195:-:*:*:*:*:*:*:*

Configuration 41 (hide)

AND
cpe:2.3:o:mediatek:mt8196_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8196:-:*:*:*:*:*:*:*

Configuration 42 (hide)

AND
cpe:2.3:o:mediatek:mt8367_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8367:-:*:*:*:*:*:*:*

Configuration 43 (hide)

AND
cpe:2.3:o:mediatek:mt8391_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8391:-:*:*:*:*:*:*:*

Configuration 44 (hide)

AND
cpe:2.3:o:mediatek:mt8395_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8395:-:*:*:*:*:*:*:*

Configuration 45 (hide)

AND
cpe:2.3:o:mediatek:mt8668_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8668:-:*:*:*:*:*:*:*

Configuration 46 (hide)

AND
cpe:2.3:o:mediatek:mt8676_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8676:-:*:*:*:*:*:*:*

Configuration 47 (hide)

AND
cpe:2.3:o:mediatek:mt8678_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8678:-:*:*:*:*:*:*:*

Configuration 48 (hide)

AND
cpe:2.3:o:mediatek:mt8696_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8696:-:*:*:*:*:*:*:*

Configuration 49 (hide)

AND
cpe:2.3:o:mediatek:mt8781_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8781:-:*:*:*:*:*:*:*

Configuration 50 (hide)

AND
cpe:2.3:o:mediatek:mt8788e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8788e:-:*:*:*:*:*:*:*

Configuration 51 (hide)

AND
cpe:2.3:o:mediatek:mt8792_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8792:-:*:*:*:*:*:*:*

Configuration 52 (hide)

AND
cpe:2.3:o:mediatek:mt8799_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8799:-:*:*:*:*:*:*:*

Configuration 53 (hide)

AND
cpe:2.3:o:mediatek:mt8910_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8910:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-09-07 02:17

Updated : 2026-09-09 02:55


NVD link : CVE-2026-20501

Mitre link : CVE-2026-20501

CVE.ORG link : CVE-2026-20501


JSON object : View

Products Affected

mediatek

  • mt8391
  • mt6765
  • mt6833
  • mt6789_firmware
  • mt8196_firmware
  • mt6779_firmware
  • mt6878
  • mt6889_firmware
  • mt8186
  • mt6833_firmware
  • mt6985_firmware
  • mt6873
  • mt8668_firmware
  • mt6885_firmware
  • mt6991
  • mt6853
  • mt8126_firmware
  • mt6886_firmware
  • mt8799
  • mt6768_firmware
  • mt6881_firmware
  • mt6897
  • mt8781_firmware
  • mt6878_firmware
  • mt8195
  • mt8367_firmware
  • mt6885
  • mt6781
  • mt6873_firmware
  • mt6889
  • mt6858
  • mt8676
  • mt6877
  • mt6769_firmware
  • mt6883_firmware
  • mt2718
  • mt8676_firmware
  • mt6993
  • mt6879
  • mt2718_firmware
  • mt8391_firmware
  • mt6895_firmware
  • mt6897_firmware
  • mt6983_firmware
  • mt8788e
  • mt8696_firmware
  • mt6739_firmware
  • mt8668
  • mt6761_firmware
  • mt6883
  • mt8678_firmware
  • mt8171_firmware
  • mt8910_firmware
  • mt6739
  • mt6983
  • mt6855_firmware
  • mt6899
  • mt6879_firmware
  • mt8189
  • mt6858_firmware
  • mt8678
  • mt6895
  • mt6877_firmware
  • mt6768
  • mt6893
  • mt6993_firmware
  • mt6835_firmware
  • mt8196
  • mt8696
  • mt6991_firmware
  • mt8395
  • mt6881
  • mt6835
  • mt6989
  • mt6785_firmware
  • mt6855
  • mt8171
  • mt6765_firmware
  • mt6769
  • mt6853_firmware
  • mt6789
  • mt6785
  • mt6580_firmware
  • mt8186_firmware
  • mt6989_firmware
  • mt8788e_firmware
  • mt8188
  • mt6886
  • mt8799_firmware
  • mt6779
  • mt6580
  • mt8195_firmware
  • mt6761
  • mt8781
  • mt8792
  • mt6985
  • mt6899_firmware
  • mt8188_firmware
  • mt6781_firmware
  • mt8910
  • mt8126
  • mt8367
  • mt8395_firmware
  • mt6893_firmware
  • mt8189_firmware
  • mt8792_firmware
CWE
CWE-122

Heap-based Buffer Overflow