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Fencer Vulns
medium 6.7

CVE-2024-20121 json

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

published 2024-11-04 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-17836

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 KeyInstall, 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: ALPS08956986; Issue ID: MSV-1574.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.08% 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
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. MT6765, MT6768, MT6833, MT6835, MT6853, MT6855, MT6879, MT6886, MT6893, MT6983, MT6989, MT8321, MT8385, MT8765, MT8766, MT8768, MT8771, MT8775, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8792, MT8795T, MT8796, MT8797, MT8798
  • mediatek mt6765
  • mediatek mt6768
  • mediatek mt6833
  • mediatek mt6835
  • mediatek mt6853
  • mediatek mt6855
  • mediatek mt6879
  • mediatek mt6886
  • mediatek mt6893
  • mediatek mt6983
  • mediatek mt6989
  • mediatek mt8321
  • mediatek mt8385
  • mediatek mt8765
  • mediatek mt8766
  • mediatek mt8768
  • mediatek mt8771
  • mediatek mt8775
  • mediatek mt8781
  • mediatek mt8786
  • mediatek mt8788
  • mediatek mt8789
  • mediatek mt8791t
  • mediatek mt8792
  • mediatek mt8795t
  • mediatek mt8796
  • mediatek mt8797
  • mediatek mt8798
  • google android

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.