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Fencer Vulns
medium 4.4

CVE-2023-20677 json

In wlan, there is a possible out of bounds read due to a missing bounds check.

published 2023-04-06 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-24856

cvss
4.4
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 wlan, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07588413; Issue ID: ALPS07588436.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
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 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected products

  • MediaTek, Inc. MT5221, MT6781, MT6789, MT6833, MT6855, MT6877, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8695, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797, MT8798
  • mediatek mt5221
  • mediatek mt6781
  • mediatek mt6789
  • mediatek mt6833
  • mediatek mt6855
  • mediatek mt6877
  • mediatek mt6879
  • mediatek mt6895
  • mediatek mt6983
  • mediatek mt7663
  • mediatek mt7668
  • mediatek mt7902
  • mediatek mt7921
  • mediatek mt8167s
  • mediatek mt8168
  • mediatek mt8169
  • mediatek mt8175
  • mediatek mt8185
  • mediatek mt8362a
  • mediatek mt8365
  • mediatek mt8385
  • mediatek mt8518
  • mediatek mt8532
  • mediatek mt8675
  • mediatek mt8695
  • mediatek mt8766
  • mediatek mt8768
  • mediatek mt8771
  • mediatek mt8781
  • mediatek mt8786
  • mediatek mt8788
  • mediatek mt8789
  • mediatek mt8791t
  • mediatek mt8797
  • mediatek mt8798
  • google android
  • linuxfoundation yocto

Classification

Weakness
Technology feeds

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.