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Fencer Vulns
high 8.4

CVE-2023-43540 json

Buffer Copy Without Checking Size of Input in Bluetooth HOST

published 2024-03-04 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-47946

cvss
8.4
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 1%
public exploits
0
none known

Summary

Memory corruption while processing the IOCTL FM HCI WRITE request.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Qualcomm, Inc. Snapdragon
  • qualcomm aqt1000_firmware
  • qualcomm fastconnect_6200_firmware
  • qualcomm fastconnect_6700_firmware
  • qualcomm fastconnect_6800_firmware
  • qualcomm fastconnect_6900_firmware
  • qualcomm fastconnect_7800_firmware
  • qualcomm qca6391_firmware
  • qualcomm qca6420_firmware
  • qualcomm qca6430_firmware
  • qualcomm sc8380xp_firmware
  • qualcomm sm6250_firmware
  • qualcomm wcd9340_firmware
  • qualcomm wcd9341_firmware
  • qualcomm wcd9380_firmware
  • qualcomm wcd9385_firmware
  • qualcomm wsa8810_firmware
  • qualcomm wsa8815_firmware
  • qualcomm wsa8830_firmware
  • qualcomm wsa8835_firmware
  • qualcomm wsa8840_firmware
  • qualcomm wsa8845_firmware
  • qualcomm wsa8845h_firmware

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input
  • CWE-787 Out-of-bounds Write

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.