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Fencer Vulns
medium 6.7

CVE-2023-20809 json

In vdec, there is a possible out of bounds write due to a missing bounds check.

published 2023-08-07 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-24988

cvss
6.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits
0
none known

Summary

In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: DTV03751198; Issue ID: DTV03751198.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.09% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

  • MediaTek, Inc. MT5583, MT5691, MT5695, MT9010, MT9011, MT9012, MT9016, MT9020, MT9021, MT9022, MT9030, MT9031, MT9032, MT9215, MT9216, MT9218, MT9220, MT9221, MT9222, MT9255, MT9256, MT9266, MT9269, MT9285, MT9286, MT9288, MT9600, MT9602, MT9610, MT9611, MT9612, MT9613, MT9615, MT9617, MT9629, MT9630, MT9631, MT9632, MT9636, MT9638, MT9639, MT9650, MT9652, MT9666, MT9667, MT9669, MT9670, MT9671, MT9675, MT9685, MT9686, MT9688
  • mediatek mt5583
  • mediatek mt5691
  • mediatek mt5695
  • mediatek mt9010
  • mediatek mt9011
  • mediatek mt9012
  • mediatek mt9016
  • mediatek mt9020
  • mediatek mt9021
  • mediatek mt9022
  • mediatek mt9030
  • mediatek mt9031
  • mediatek mt9032
  • mediatek mt9215
  • mediatek mt9216
  • mediatek mt9218
  • mediatek mt9220
  • mediatek mt9221
  • mediatek mt9222
  • mediatek mt9255
  • mediatek mt9256
  • mediatek mt9266
  • mediatek mt9269
  • mediatek mt9285
  • mediatek mt9286
  • mediatek mt9288
  • mediatek mt9600
  • mediatek mt9602
  • mediatek mt9610
  • mediatek mt9611
  • mediatek mt9612
  • mediatek mt9613
  • mediatek mt9615
  • mediatek mt9617
  • mediatek mt9629
  • mediatek mt9630
  • mediatek mt9631
  • mediatek mt9632
  • mediatek mt9636
  • mediatek mt9638
  • mediatek mt9639
  • mediatek mt9650
  • mediatek mt9652
  • mediatek mt9666
  • mediatek mt9667
  • mediatek mt9669
  • mediatek mt9670
  • mediatek mt9671
  • mediatek mt9675

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.